beautiful curvy female Secret Service agent undercover, Caucasian, brown hair in a loose ponytail or casually brushed style, wearing sexy casual clothing — fitted colourful jacket, simple transparent tube top, very short ripped denim pencil skirt, midriff, firm medium breasts, underboob, no panties, pubic hair, subtle earpiece barely visible under hair, calm but hyper-aware expression, scanning surroundings, realistic urban environment such as a city plaza or coffee shop entrance, people blurred in background, natural daylight, soft shadows, lifelike skin texture, ultra-realistic photography, sharp focus on face and clothing, depth of field, subtle film grain, authentic covert security atmosphere, professional but low-profile appearance, slightly narrowed eyes, controlled breathing, soft dramatic lighting