Composición en Espiral de Ciudades Miniatura de Era

A spiral composition (not grid) with the exact number concentric rings required, each a photorealistic, ultra-realistic 12-K 3D-rendered miniature city with era-relevant elements. Rings: 1) 3500 BC era relevant city. ring 2) 500 AD era relevant city. ring 3) 1900 AD era relevant city. ring 4) 2025 AD era relevant city ring 5) 3000 AD era relevant city 15 scale with relevant details and elements for each On a rotating marble pedestal. Neutral gray walls curve subtly, with era windows glowing. Overhead light spirals inward, casting radial shadows for a motion illusion. Cinematic 16-K quality. Rings sit on a polished white-marble turntable. Neutral gray cyclorama background; single overhead spiral key-light casting radial shadows. Ultra-photoreal, cinematic quality, sharp textures.