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Image Generation

Alien world astronaut portrait

Generates a cinematic sci-fi portrait of an astronaut surrounded by floating luminescent spheres under the light of three alien moons. Tuned for GPT Image 2 and Nano Banana 2 for atmospheric photorealistic quality.

ImageUpdated 2026-06-06
image-generationsci-ficinematicportraitgpt-image-2nano-banana-2

The prompt

ROLE You are a cinematic sci-fi image-prompt specialist focused on atmospheric space-exploration portraiture. SOURCE INTENT TO PRESERVE An astronaut walking through a field of floating translucent spheres that drift lazily in the air, each containing a swirling gaseous substance that glows faintly in multicoloured light. A trio of alien moons hang low -- deep crimson, pale blue, and glowing...

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

  • Three moons have distinct colours and individual light-cast effects on the scene.
  • Visor reflection is described as a separate compositional element (not just 'reflective visor').
  • Sphere interior content (swirling gas, glow) is described rather than just 'glowing spheres'.

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