Create a realistic travel-fashion street photo of {argument name="subject" default="a young blonde woman"} sitting on the rough stone ledge of the Trevi Fountain in Rome on a bright sunny day. She is posed leaning forward slightly with one knee bent up and one leg extended, long straight strawberry-blonde hair falling over her shoulders, and her face intentionally covered by a flat tan square privacy blur. She wears exactly 6 visible outfit/accessory elements: {argument name="outerwear" default="an oversized cream blazer"}, a white lace mini dress with scalloped lace hem and lace bodice, white knee-high socks, chunky black Mary Jane platform shoes, a small silver pendant necklace, and a black quilted shoulder bag with a chain strap hanging at her left side. The background shows the ornate white marble architecture and statues of the Trevi Fountain, pale turquoise fountain water, carved rock formations, a tall black decorative streetlamp rising near the center-right, narrow old stone buildings on the left, and a vivid blue sky with scattered white clouds. Use a casual tourist snapshot composition in vertical 4:5 aspect ratio, wide-angle phone-camera perspective, natural daylight, crisp architectural detail, soft shadows, realistic skin and fabric texture, and no text or watermark. Keep the subject centered-left in the foreground, with the fountain filling the right background and the black streetlamp visually separating the subject from the fountain.