Hyperrealistic 3D render of a miniature architectural diorama showcasing Shanghai's evolution, displayed on a large circular floating platform divided into four quadrants. Top-left: traditional Shikumen buildings; top-right: Bund historical architecture; bottom-right: modern Pudong skyline; bottom-left: futuristic sustainable structures. All elements are physical 3D miniature models with depth and dimension, floating above the Huangpu River with clear water reflections. Background features a hazy Shanghai skyline silhouette transitioning from warm dawn orange to twilight purple. Lighting varies by quadrant: warm sepia, golden hour sunlight, vibrant electric blue neon, holographic cyan-purple glow. Tilt-shift effect for miniature perspective, ultra-detailed textures, 4K resolution, dramatic studio lighting, professional architectural miniature photography.