1girl, sitting by the lake, (18yo), serene expression, long flowing hair, casual dress, denim jacket, white sneakers, holding a sketchbook, ducks in the water, tall trees, wooden dock, sunset, warm ambient light, reflective water surface, soft textures, natural colors, peaceful atmosphere, distant mountains, clear sky, 3/4 view, detailed background, realistic style, vibrant greenery, gentle breeze, lens flare, high resolution.