Prompt
A real photograph, selective-colour conversion drawn from a 35mm colour negative with fine silver grain and full tonal texture. Soft ambient key light wraps the planes gently, its shading carried entirely in luminance. The finish turns the picture continuous-tone black-and-white except one retained region that keeps its exact original hue behind a soft, edge-aware boundary, so transparent and defocused edges keep their natural behaviour and tonal contrast still separates skin, hair and fabric. A wide street scene on a rainy cobbled lane at night: a lone adult figure in a long dark coat walks away from the camera holding one small vivid red umbrella, wet cobblestones reflecting a single iron street lamp and the lit windows of tall old townhouses, rain streaks in the lamplight, a bare tree arching overhead. The entire picture is black and white except the red umbrella, which keeps its exact vivid red. No readable text, lettering, signs or logos anywhere; the picture fills the whole frame on its own ground with no checkerboard or transparency pattern.
Palette: continuous black and white with a single saturated red umbrella; lonely, cinematic, rainy.
Wide 16:9 frame.
