Generate a massive, player-scale 3D...

Generate a massive, player-scale 3D Minecraft kingdom from this image. Scale it upward to an uncompressed mega-scale with 4-sided, fully hollow, liveable houses. Erase all flat ground; build a steep, rugged mountain terrain rising from the harbor up to a giant castle peak capping at Y=300. Lay out the city in grand concentric semicircles wrapping the bay, featuring curved sloped roads, hollow underground sewers, a dense commercial warehouse port tier (remove all ships and flatten the lighthouse island peak to an 11-block stone circle), tightly clustered residential rows with rotated rooflines, fortified west military garrison wall, eastern river watermill sector, a massive 145x145 western arena platform, central clock tower square, a grand gothic cathedral, magic purple spires, and castle