浮遊天空城デジタルアートポスタープロンプト

A cinematic digital art poster featuring a majestic floating "Sky Castle" in the form of a miniature island, hovering serenely above an endless sea of clouds and dominating the composition. The floating island is shaped as a grand Western-style medieval castle complex, centered around a towering central keep with conical roofs, fortified stone walls, multiple cylindrical turrets, crenellated battlements, arched gateways, drawbridges, and multi-level ramparts. The entire structure embodies authentic medieval European castle architecture: massive stone masonry, narrow arrow-slit windows, wooden hoardings, and a grand central tower rising prominently in the middle. The castle seamlessly incorporates subtle Qing Dynasty Chinese influences: ornate tiled roofs with gentle upturned