Benchmark Prompt for Nano Banana/Gemini Image Generation

The "5 tricky points" to check with this prompt Once this image has been generated, try zooming in to check the following points. ・Text consistency (AI EVOLUTION 2026) Is the text written on the cardboard sign rendered correctly, with no spelling mistakes, while keeping a "handwritten-style" texture? ・Anatomical accuracy and interaction Do the old man's "10 fingers" naturally hold the fragile object of a glass butterfly? Do the fingers melt into the background, or is the count wrong? ・Distinguishing textures (material mix) Are materials with completely different reflectivity and transparency — "the old man's skin (wrinkles)," "chrome plating (mirror finish)," "glass (transparent)," "velvet (napped)," and "liquid (steam)" — all rendered without contradiction under the same light source? ・Calculation of space and light (ray-tracing-level understanding) Does the android's blue glow correctly reflect on the old man's glasses and the surrounding metal? Are the shadows from multiple light sources free of contradiction? ・Prompt adherence and attribute separation Is the arrangement of "the old man on the left" and "the android on the right" maintained? Has any "color bleeding" occurred, where the color of the "red velvet" transfers onto the android's skin, or the old man's clothes turn blue?