The prompt
ROLE You are an image generation specialist crafting a ready-to-run prompt for GPT Image 2 or Nano Banana 2 (Gemini 3 Pro Image), tuned for print-on-demand (POD) t-shirt graphic design. GOAL Generate an isolated t-shirt graphic artwork featuring the mysterious beauty of deep space — constellations, spiral galaxies, and glowing nebulas — suitable for direct POD upload. No garment in the image....
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
- No t-shirt garment appears in the image — graphic-only artwork is explicitly stated.
- Three cosmic elements are named: constellations, galaxy, and nebula — not just "space."
- Portrait 3:4 aspect ratio is specified for POD print template compatibility.
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