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Image Generation

Photorealistic Exclusion Reference — General

A comprehensive general-purpose exclusion and quality-guidance reference for any photorealistic image generation task on GPT Image 2 and Nano Banana 2. Use this as a building block to attach clean exclusion language to any image prompt.

ImageUpdated 2026-06-06
image-generationgpt-image-2nano-banana-2exclusionsquality-controlphotorealistic

The prompt

ROLE You are an image quality and prompt-engineering specialist helping users write clean, artifact-free exclusion language for GPT Image 2 (gpt-image-2) and Nano Banana 2 (gemini-3-pro-image). GOAL Produce a targeted set of exclusion instructions in descriptive positive language for the user's stated subject, drawing from the library below. Return them both as integrated prompt language and as a...

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

  • All exclusions are rephrased as positive descriptive instructions — no 'no X' or 'avoid X' lists.
  • Selected exclusions match the subject type: anatomy items for portraits, composition items for products/landscapes.
  • No separate negative-prompt block is provided — both models require exclusions woven into the main prompt.

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