image-promter-skill

image_promter — unified prompt skill (Qwen-Image + Krea 2)

Prompt-mastery skill for the Flux/Qwen family of image models, in one place:

• Qwen-Image-2512 — text-to-image generation
• Qwen-Image-Edit-2511 — image editing
• Krea 2 (Raw / Turbo) — generation + img2img + depth/pose control

They share the same lineage — a Qwen VLM text encoder and a Qwen-Image VAE — so one prompting philosophy covers all three, with per-model specifics called out. Every load-bearing rule is sourced; community material is marked [secondary], unconfirmed is [unverified].

Merged 2026-07-24 from the qwen-image-prompter and krea2_promter skills. Project context: SFW artistic work (athletics, grace, fantasy). Keep prompts positive and literal.

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0. TRIGGERS — when to open

• Writing/auditing a prompt for Qwen-Image-2512 (T2I), Qwen-Image-Edit-2511 (edit), or Krea 2 (Raw/Turbo).
• Text inside an image (signs, labels, logos).
• An edit that won't obey — changes what you didn't ask, drifts pose/frame/identity.
• Multi-image edits (subject+subject, subject+pose, subject+scene).
• Depth / pose / skeleton control for Krea 2.
• Picking steps/CFG/mu/negative/resolution for any of them.

Skip for: LTX-2.3 video (separate skill), SDXL/older SD (different rules).

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1. Shortest answer

These are natural-language models, not tag models. The text encoder is a Qwen VLM (Qwen2.5-VL-7B for Qwen-Image; Qwen3-VL-4B for Krea 2) — it parses grammar, not keyword confetti. Write fluent sentences, subject first, quote any literal text, and do not use (word:weight) numeric emphasis — it breaks. [verified: official docs]

Per-model defaults:

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2. PROCEDURE — run it, don't recall it

Step 1. Read §3 (what the models see) and the model's own section (§5 Qwen-gen / §6 Qwen-edit / §7 Krea) BEFORE drafting.

Step 2. Build:

• Generation / Krea: one fluent paragraph — subject (front-loaded) → attributes/materials → action → setting → lighting (name 1-2 sources) → camera/lens → medium/style.
• Edit (2511): an instruction — <what changes>; keep <what stays> unchanged, concise, one edit per pass.

Step 3. Checklist:

[ ] natural-language prose, NOT booru tags, NOT (word:1.3) weights
[ ] subject front-loaded (whatever comes first reads as the subject)
[ ] 1-2 named light sources + direction (biggest realism lever)
[ ] ONE main action (two competing actions => mush)
[ ] literal text wrapped in "double quotes"
[ ] medium stated and not switched (photo -> photo)
[ ] positive phrasing — say what IS, avoid "no ..." / "not ..." (VLM encoders mishandle negation)
[ ] emphasis by word order / restatement / precise word, not numbers
[ ] Krea Turbo: no negative prompt (cfg 0) — remove elements by describing positively
[ ] edit(2511): concise, one change, keep-list only for LOCAL edits
[ ] LoRA trigger placed verbatim at the start if a LoRA is used
[ ] within token limit (1024 Qwen / 512 Krea)

Step 4. Deliver the prompt WITH the checklist result.

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3. What the models SEE (shared)

• Encoder = Qwen VLM, not CLIP/T5. It reads the prompt as language: grammar, spatial relations, possessives, and (mostly) counts. SDXL-style masterpiece, best quality, 8k is ignored. [verified: diffusers docs; instasd secondary]
• VAE = Qwen-Image VAE (f8, 16 latent channels) — shared across Qwen-Image and Krea 2. [verified]
• (word:weight) emphasis breaks — scaling one token shoves the whole conditioning. Emphasize by order, restatement ("a rusted gate, orange corrosion eating the hinges"), or a precise word ("oxblood" > "red:1.5"). [secondary: instasd]
• Qwen-Edit wraps your prompt in a system template that says describe the input, then apply the instruction — so write an instruction, not a scene description. [verified: diffusers pipeline]
• Qwen-Edit sees each input image at ~384×384 for meaning (plus ~1MP for appearance) — small details (a face at 5% of frame) are invisible to the semantic encoder; fix by cropping, not prompting. [verified: pipeline CONDITION_IMAGE_SIZE]

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4. Text inside images (all models)

• Strength of this family. Wrap every literal string in double quotes: a sign reading "OPEN". [verified: official]
• State exact content, position, and style; avoid vague "a label"/"some text".
• Krea 2: same quoting rule; text quality is mid-tier (fine for a sign, unreliable for a headline). [verified + secondary]
• Qwen-Edit: adding or replacing text are both "text replacement" — Replace "xx" with "yy", keep original case/language.

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5. Qwen-Image-2512 — generation (T2I)

• Params: num_inference_steps=50, true_cfg_scale=4.0, official Chinese negative default (low quality / deformed limbs / oversaturated / waxy / blurry text). [verified: model card]
• Prose, single paragraph, no markdown lists. Portrait order: person (ethnicity, gender, age) → clothing → face/skin → pose → background. [verified: official rewriter]
• Standard resolutions: 1:1 1328², 16:9 1664×928, 9:16 928×1664, 4:3 1472×1104, 3:2 1584×1056 (and mirrors).
• Truncation past 1024 tokens is silent. Keep ~200 words for portraits.

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6. Qwen-Image-Edit-2511 — editing

Golden rule: one sentence, <change> ; keep <list> unchanged. Official example:

Replace the man's hat with a dark brown beret; keep smile, short hair, and gray jacket unchanged

• It re-synthesizes, not pixel-preserves. For byte-exact untouched areas use a mask / crop-and-stitch, not words. [verified: tech report + community]
• keep-lists: work for local edits (hat, color, text). For big edits (swap character, change scene) they don't hold, and mentioning the face invites repaint — scope positively, describe only what changes. [secondary synthesis]
• Be concise, one edit per pass. Chains of 2-3 short edits beat one compound prompt. [verified: official "keep concise" + community]
• Multi-image: name the entity, not the index — "the girl of picture 1", not "the subject of picture 1"; add "keeping picture 2's background unchanged". Up to 3 images (Picture 1/2/3). [verified]
• Pose transfer vocab that works: "pixel accurate", list body parts by name, a separate sentence for "field of view and angle". [secondary: AnyPose]
• Fixed templates (verbatim): Restore and colorize the photo. / Perform inpainting on this image. The original caption is: <caption> / Extend the image beyond its boundaries using outpainting. The original caption is: <caption>

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7. Krea 2 (Raw / Turbo)

• Family: single-stream MMDiT + flow-matching, Qwen3-VL-4B encoder, Qwen-Image VAE — Flux-2 lineage, prompt it like Qwen-Image. [verified]
• Raw vs Turbo:
  • Turbo — 8 steps, cfg 0 (guidance off → no negative prompt), fixed mu 1.15, ~2s@2K, inference.
  • Raw — 52 steps, cfg 3.5, resolution-derived mu, the LoRA-training base ("not for inference").
  • Train on Raw → run on Turbo (official).
• CFG is offset by +1: Krea guidance_scale=3.5 ≈ conventional CFG 4.5. [verified]
• Official prompt guide: natural-language, long detailed sentences; subject → material/attributes → lighting → palette → composition. Quote text. [verified: krea prompting.md]
• Realism levers: name 1-2 light sources + direction (biggest one), camera/lens (35mm, macro, shallow depth of field), film terms (film grain, motion blur), concrete materials. Kills realism: quality-tag spam, two competing actions, zero described light, fighting a style LoRA. [secondary: fal.ai, instasd]
• Resolution: up to 2K; native training res 2048² — generate near 2K, don't render at 1024 and upscale.
• LoRAs: each style LoRA needs its exact trigger in the prompt; stack ~0.7 per LoRA as a starting weight; one style + one subject LoRA composes, two styles fight.

7a. Control (Krea 2, ComfyUI)

Control-image is VAE-encoded and channel-concatenated (not classic ControlNet). Plugin facok/comfyui-krea2-controlnet: preprocessor → Control Image Encode → Control LoRA Loader → Control Apply → sampler.

• Depth (Patil/Krea-2-depth-controlnet) — run Depth-Anything-V2 on a real photo; drives volume/silhouette. Don't feed a bare skeleton to the depth LoRA (thin lines → near-uniform depth → weak control).
• Pose (SceneWorks/krea2-pose-controlnet-beta) — eats OpenPose skeletons natively (512², Turbo, experimental).
• control_scale / lora-scale: 0.5-0.7 lets the prompt add mass beyond the source silhouette (thin subject → bulky costume); 1.0 locks the silhouette; 1.1-1.2 exact pose match.

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8. Anti-drift / preservation (edit & img2img)

Canonical preservation vocabulary (Qwen-Edit expander, applies broadly): [verified]

• "Preserve all original subjects, actions, colors, and spatial relationships. Do not add new objects unless clearly implied."
• Already detailed prompt → "lightly polish rather than heavily expand."
• Honor the stated medium; don't switch.
• img2img/reference strength as a style-lock: 0.25 light → 0.50 balanced → 0.70 strong → 0.90+ dominant (less literal prompt).
• Krea over a Qwen-Edit latent: keep denoise ~0.42 — structure holds, realism is added.

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9. Ready patterns (SFW)

Portrait realism (Qwen-gen / Krea, official-style):

A close-up portrait of a young woman with straight black hair and an intense gaze, wearing a light grey collared shirt with a black tie, a bouquet of pink lilies blurred in the right foreground, solid crimson background, soft directional studio lighting, high-contrast, shallow depth of field.

Two-lights / one-action / one-texture realism (Krea):

a fishmonger in a yellow rubber apron arranging silver mackerel on crushed ice at a market stall, early morning, cold blue daylight mixing with warm tungsten bulbs, wet reflective concrete floor, photorealistic, slight motion blur on his hands

Local edit (2511):

Replace the woman's black top with a white tank top; keep her face, hairstyle, pose, skin tone and the background unchanged.

Pose transfer (2511, multi-image):

Make the person in picture 1 match the exact pose of the person in picture 2 — arms, head and legs pixel accurate, and match the field of view and angle. Keep the style and background of picture 1 unchanged.

Character with LoRA (Krea):

<TRIGGER> a tall figure in <outfit>, <action>, <setting>, soft directional key light with rim light from behind, low-angle 35mm, photorealistic, film grain.

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10. Failure modes → fix

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11. Sources

Qwen-Image / Edit: HF Qwen/Qwen-Image-2512, Qwen/Qwen-Image-Edit-2511; GitHub QwenLM/Qwen-Image (prompt_utils.py, prompt_utils_2512.py); diffusers pipeline_qwenimage_edit_plus.py; arXiv 2508.02324. Krea 2: krea-ai/krea-2/docs/prompting.md + expansion.txt; Krea 2 Technical Report; diffusers Krea2 pipeline; HF krea/Krea-2-Turbo, krea/Krea-2-Raw; ComfyUI Krea-2 tutorial. Control: HF Patil/Krea-2-depth-controlnet, SceneWorks/krea2-pose-controlnet-beta; GitHub facok/comfyui-krea2-controlnet. Community [secondary]: instasd, fal.ai, Andro-Meta krea-2-local-studio, AnyPose LoRA card.

[unverified]: exact AR buckets above 2K; max clean LoRA stack; whether the 2509 "1-3 image" optimum holds for 2511; whether the negation ban transfers from T2I rewriter to editing.