Scandi-minimal studio portrait of a Vietnamese person; clean grooming; hair pulled into a low ponytail; no glasses; outfit: simple black long-sleeve top, no logos; pale cool-gray seamless backdrop; soft Rembrandt lighting with gentle fill; 105 mm macro-sharp. Expression: calm and steady, subtle closed-mouth smile. Framing: 3:4 portrait, mid-chest-up, centered, eye-level, front view; no props.