Photoreal cinematic background, shallow depth of field, softly out of focus so it sits naturally behind a sharp foreground subject. Keep the center and lower-center open for the subject. Preserve the subject completely — do not alter the face, hair, body, or clothing, no identity change. Blend the subject with natural edge integration, match color temperature and lighting between subject and background, add a subtle warm rim light along the subject's edges. If the output animates: gentle seamless looping background motion only; keep the subject sharp, stable and unchanged. No additional people in the background. slow rising bubbles and drifting caustic light
