她转身微笑然后离开画面（图像输入参考）

Style: Soft contemporary portrait cinema, naturalistic skin tones, gentle film grain, painterly background blur.

[Use image input as first-frame reference: a young woman standing in soft afternoon light, three-quarter angle, environment locked in by the image.]

Cinematography:
- Camera: locked off medium close-up matching the reference frame; very subtle handheld breathing
- Lens: 50mm; shallow DOF preserving the reference's separation between subject and background
- Lighting: maintain the reference's soft directional key and ambient fill
- Mood: warm, unguarded, momentary

Actions:
- She turns around
- A small, genuine smile reaches her eyes
- She holds the look for one beat
- She slowly walks out of the frame to camera right; light continues to play on the empty background

Background Sound: Quiet room tone; faint cloth rustle as she turns; a single distant door. No music.

API note: pass the reference image via input_reference; size must match the target video resolution (jpeg/png/webp).