Prompt Engineering for Images: Structure Beats Length

Front-load the subject. Name the exact thing you want first—"a ceramic coffee cup, cracked glaze"—before any style words. Models weight early tokens more heavily, so "a red fox in snow" beats burying the fox after five adjectives.

Separate your prompt into clear blocks: subject, style, lighting, and camera. For example, "portrait of an elderly fisherman / oil painting / soft golden-hour rim light / 85mm shallow depth of field." This lets you swap one block without breaking the rest, and makes iteration fast.

Be concrete about what you don't want. Use negative prompts for "extra fingers, text, watermark" and specify aspect ratio and resolution up front. On B4AI you can run the same structured prompt across multiple image models side by side, so keep prompts modular and compare which engine renders your style best.