楼梯间：光井与踏面的节奏

Stairwell viewed looking upward through the void, a continuous flight of cantilevered stone treads spiralling around a narrow light well, slim steel balustrade with a fine vertical rod infill, a skylight at the top of the shaft dropping a shaft of daylight down all storeys, the treads casting a rhythmic pattern of shadows on the plastered wall, cool grey and pale timber palette, low viewpoint looking straight up, 16mm lens, ultra photorealistic, 8K