Design a colossal Minecraft harbor ...

Design a colossal Minecraft harbor capital city carved into a rugged coastal cliffside — a fortified medieval-fantasy port with a royal castle crowning the highlands and a dense working-class town tumbling down to the sea. Scale: Roughly 400 × 180 × 400 blocks. This is a CITY, not a single building — it must feel like thousands of people could live here. Core districts (each must be distinct and detailed): The High Citadel (castle) — perched on the highest cliff, 80+ blocks tall. White/grey stone brick walls, dozens of slender spires topped with oxidized copper cone roofs, crenellated curtain walls, tall narrow windows, royal banners. Asymmetric silhouette — one wing larger, towers of varying heights clustered together like a crown. The Great Viaduct — a massive stone arch bridge with 8