Unheimlicher Humanoider Alien in Felsiger Schlucht

A full-body cinematic portrait of an unsettling humanoid alien standing upright and centered in a dark rocky ravine, facing forward with arms hanging at its sides. Subject: Extremely tall, emaciated creature with elongated limbs, narrow shoulders, sunken torso, visible rib-like structures, taut sinewy anatomy, oversized hands with long slender fingers, and digitigrade feet planted on wet black ground. Hairless, slick, pale gray-beige skin with brownish fleshy undertones, biomechanical textures, glossy damp highlights, stretched membranes, tendons, and subtle vein striations. The neck and upper chest fuse into organic folds with open channels running up into a broad, mushroom- or hammer-shaped head with a ridged crown and flared side lobes, featuring an unreadable, nonhuman face. Setting: Narrow canyon of dark eroded stone, framed by two large foreground rock masses on the left and right, with a receding misty cliff wall behind. Lighting and Atmosphere: Cold desaturated lighting, subtle natural overhead backlight, soft fog, damp wet surfaces, and an oppressive, grim monochrome palette of charcoal, slate, ash gray, and muted flesh tones. Style: Photorealistic sci-fi horror film still, ultra-detailed skin textures, shallow depth of field, atmospheric haze. Constraints: No clothing, no tools, no background creatures, no gore, no text.