A photorealistic full-body portrait of a slender young adult woman with fair skin and long straight strawberry-blonde/red hair cascading over her shoulders, sitting completely nude on a thick weathered fallen tree log in a vibrant autumn forest. Her body is slim with small natural breasts, a flat stomach, visible hips, and long toned legs spread wide open, one knee raised higher than the other so that her bare genitals are clearly and naturally visible. She wears absolutely nothing — no stockings, no shoes, no clothing of any kind. One hand rests on her hip, the other supports her on the log. She looks directly at the camera with a soft, slightly parted-lip expression. The surroundings are a colorful autumn woodland with tall trees showing brilliant red, orange, golden-yellow and deep brown leaves, many already fallen and covering the ground in a rich carpet of autumn foliage. Soft golden sunlight filters through the canopy, creating warm dappled light that complements her reddish hair. Natural skin texture, realistic details, sharp focus, high resolution, no text, no watermarks, no UI elements.