雪线在黑土上收尾，银盐灰阶里一条曲线

Black-and-white fine-art photography, widescreen 16:9. Exposed on slow, fine-grained monochrome film through a 35mm lens, stopped down so the whole slope stays crisp, with a whisper of silver grain and a restrained gelatin-silver tone curve: shadows that separate into legible deep greys, highlights that seem to glow. What we see: high on a mountain face, pure white snow gives way to bare dark soil and brittle tussocks of grass at a crisp, sinuous snowline. It runs through the picture as the dominant leading line. Some dark rocks are dotted about, and one small pool of melting snow where the two meet gives a sense of size. Light: a low, frigid, crystal-clear sun grazes across from camera-left in its last moments before the ridge swallows it. Long shadows from each tussock stretch down the incline; the snow shines with gentle bright highlights; the soil drops into rich, dark greys; and a narrow strip of ridge shadow crosses the snow above, under a sky shading from light to dark grey. Bold graphic contrast, with texture intact in both the snow and the soil. Refined, hushed, monumental. Leave out any person, animal, readable lettering, sign or logo.