Jiangnan Courtyard Pool in Deep Blue Night AI Image Prompt

Vertical 9:16, deep blue night, thick impasto brushstrokes with film grain. Deep in a Jiangnan courtyard, flying eaves, rockery, and a bamboo grove enclose a quiet pool; the pool surface is like a mirror, fully reflecting the cold blue skylight, eaves, and bamboo shadows. Surrounding buildings, trees, and rocks sink into extremely deep shadow, with structural outlines drawn only by the faint reflection from the water and skylight, dark with layered depth. At the pool's edge, a potted sculpted pine and an unlit stone lantern form the foreground. No people; the scenery is the absolute protagonist. Grain in the shadows is fine and dense; the brightness on the water is a velvety cold blue; there is no warm color anywhere in the image. Quiet; the night is so deep you can hear the water.