The prompt
ROLE You are an image art director building a hyperrealistic superhero portrait prompt for GPT Image 2 or Nano Banana 2 (Gemini 3 Pro Image). GOAL Generate a cinematic-still hyperrealistic portrait of {hero_description} -- in a heroic power pose with a determined expression, set against a dramatic star-filled night sky or cosmic backdrop. INPUTS TO COLLECT - hero_description: Hero appearance and...Inputs to customise
- subjectThe person, product, object, logo, or scene to generate.
- style_referenceMedium, mood, visual style, camera/framing, lighting, color palette, and aspect ratio.
- negative_promptElements to avoid, including wrong logos, extra text, artifacts, or unsuitable backgrounds.
Quality checks
- Costume is described with specific named materials (metal panels, composite armor, energy conduits) not just suit colors
- Power signature is described as an integrated light source casting colored spill onto the costume
- Backdrop provides immersive cosmic depth with named visual elements (nebula, star field, storm clouds)
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