Shell-shaped Roof Hot Spring Inn: Curved Roof and Water Features

Design a hot-spring hotel in the manner of Kiyonori Kikutake whose guest floors are suspended from two enormous concrete portal frames, so the middle storey is left completely open as a void running right through the building. Compose the great frames gripping the slab above and below, an empty glazed gap where a floor would normally be, board-marked concrete throughout, a formal pond and clipped garden at the base, cool grey coastal light, low frontal view showing the void, 28mm lens, architectural photography, ultra photorealistic, 8K