Nano Banana Prompt: Mechanical Keycap Mini Diorama 3D Art Poster

(Mechanical Keyboard Keycap Mini Diorama 3D Art Generator) Vertical miniature diorama art poster themed '{diorama_scene_theme}'. Layout: Realistic mechanical keyboard base as background, focus shot on one single oversized keycap housing a fully enclosed tiny indoor miniature scene; transparent glossy resin keycap shell (or solid plastic cap) with backlit glowing key label text on top; inside the cap: hyper-detailed tiny figurines, complete functional room furniture, matching ambient props, themed lighting and decorative environment details, shallow depth of field bokeh keyboard key background blur. Style: ultra realistic 3D render macro photography, soft cinematic studio lighting, clean shallow depth-of-field shot, intricate miniature clay diorama texture, warm/cyber/pastel custom color tone matching the scene theme, high detail commercial art print, whimsical desk decorative artwork. Subject: macro close-up 3D artwork of a themed tiny room miniature diorama sealed inside a single mechanical keyboard keycap, theme of '{diorama_scene_theme}'.