Surreal Mountain Waterfall Long Exposure

Create a 9:16 vertical, photorealistic surreal mountain waterfall long-exposure photograph. The left foreground features a huge dark brown layered cliff occupying nearly half the width, with rough rock layers stacked diagonally and remaining sharp; an unusually wide silver-gray waterfall surges from a gap in the high mountains above, slightly to the left.

Visual result of a stable tripod exposure lasting tens of seconds to minutes: as the waterfall falls from a height, it merges into a heavy, smooth, continuous vertical silk-like water curtain, with fine parallel water threads clearly distinguishable; upon landing, the massive torrent is squeezed by the terrain into dozens of curving, spreading milky-white satin ribbon steps, each water ridge forming a smooth continuous curve, foam smoothed into soft textures by time while retaining gray water vein layers, never appearing as dead white cotton.

Sharp dark solitary peaks in the middle-right remain clear, mountain waist vapor pulled into low fog bands along horizontal wind direction during long exposure, partially obscuring the distance. Pale overcast diffuse light, cool gray, coal black, dark ochre tones, water highlights bright but not overexposed.

The bottom is a narrow, wet brown tidal flat, an adult figure wearing a black long cloak stands back-to-camera in the center slightly right, occupying only about 3% of the image height, completely sharp.

Motion blur affects only water flow, foam, mist, and vapor; rocks, tidal flats, peaks, and the figure are sharp. Low saturation, subtle film grain, solemn coldness, real disaster site feel.

Corners and edges must be completely clean, with no recognizable or unrecognizable characters, letters, numbers, signatures, seals, marks, inscriptions, logos, watermarks, dates, or decorative symbols.