Turn One Sentence Into an Image Prompt That Works
Unstable output is usually not the model's fault. It is what happens when you change five things at once. This workflow changes one thing at a time and keeps a record of why.
How to do it
Step 1: Write the idea as one plain sentence first
Do not start with a pile of keywords. Write what the image shows, where it will be used (cover, article image, UI), what must appear, and what must never appear. Read that sentence before you open “Image Prompt”. If the sentence is vague, the output will be vaguer.
Step 2: Generate a first version with “Image Prompt”
Organize it in five blocks: subject, action and composition, light, material, and camera or style. Keep it readable. Do not chase perfection in version one; you only need to see whether the direction is right. Log each change in one line so you can tell later which phrase did the work.
Step 3: Pick the closest reference image and reverse-engineer its prompt
Use “Reverse-Engineer a Prompt from a Reference Image” to describe its composition, light, palette, and texture. Take the reusable words into your own prompt. Borrow structure and light, not the subject or signature elements, or the result will read as an imitation.
Step 4: Decide the palette once, separately
Use “Color Scheme with Reasons” to settle how the primary, secondary, and background colors relate and how much contrast they carry, then put that into the prompt. Color is the first thing to drift between generations. If your brand has hex values, use the values instead of adjectives.
Step 5: Write your own rules for a consistent set
Use “Turn a reference into design rules” to pull the fixed parts out of several accepted images: viewpoint, light direction, palette, and a list of things that must not appear. Paste that page before every new generation, then describe only what is different about this image. Style survives a change of subject.
Prompts used
FAQ
How long should an image prompt be?
Long enough to pin down subject, composition, and light. Extra adjectives often fight each other; adding one variable at a time is the only way to know which phrase actually helped.
Why does the same prompt give a different image each time?
Generation has randomness built in. A fixed seed and a reference image reduce drift but never remove it, so keep alternates for anything that matters instead of expecting a hit on the first try.
Can I just copy the style of a reference image?
Learn from its composition, light, and color logic. Do not lift the subject and signature elements of a specific work; that is both a recognizability problem and a copyright risk. Use “Turn a reference into design rules” to keep only the abstract rules.