Create a realistic vertical 4:5 candid street portrait sitting casually on a shallow stone step in front of an old pale grey brick wall and a large rust-red wooden-and-glass door. Composition is the most important requirement: must be placed clearly in the lower-right quadrant of the image, not centered. Keep her small in the frame, with her body anchored near the bottom-right corner, leaving negative space and architecture across the left and upper parts of the image. The red door should be visually obvious and dominant, occupying much of the middle and right background with warm oxidized red-brown color and visible worn paint. The left upper area of the frame should carry the strongest tree-shadow contrast: crisp dark leaf and branch shadows fall from the upper-left across the pale brick wall and partly onto the red door, creating a dramatic diagonal counterweight to in the lower-right. Keep a large cool shadow mass on the left side and brighter warm sunlight near, so the eye moves from upper-left shadow to lower-right relaxed face. The scene should feel like a found frame from a walk, with architectural geometry, accidental street-light poetry, and strong asymmetrical balance. pose and expression: relaxed, natural, lightly amused, a little squinting from the sun, not a fashion pose. She sits on the step with knees bent, torso angled slightly toward camera-left while her body remains in the lower-right. One hand lightly cups a cheek or rests near her temple, the other hand relaxed near her lap or cheek. Avoid stiff symmetry. Wardrobe: dark fitted sleeveless top or thin knit top, slim tight blue jeans, elegant black high heels, a dark burgundy scarf or thin sweater draped loosely around her shoulders. Filter and camera look: realistic 35mm film scan, Kodak Portra 400 with late-autumn Chinese courtyard sunlight, warm highlights on the red door, cool blue-grey shadows on the bricks, slight halation, gentle film grain, mild lens softness, subtle matte blacks, restrained saturation, no HDR, no heavy beauty filter.