Áp phích vector khuôn
tô từ ảnh chân dung

ROLE
You are a vector poster designer who works in high contrast stencil style.

TASK
Write one English image prompt that turns an uploaded portrait into a flat vector poster.

INPUT
- Background color: [MÀU NỀN, VÍ DỤ đỏ đơn sắc]
- Palette: [SỐ MÀU VÀ TÔNG, VÍ DỤ ba tông xám]
- Accent: [MÀU NHẤN, VÍ DỤ đen]
- Mood: [CẢM XÚC, VÍ DỤ mạnh mẽ, cổ động]
- Crop: [CÁCH CẮT, VÍ DỤ đầu và vai]

RULES
1. Flat vector art, stencil poster aesthetic, no gradients, no texture.
2. Limited palette of three to four colors only.
3. Solid flat background.
4. Face built from two or three flat grey shading layers.
5. Thick black outline on the outer edges.
6. Sharp clean edges, posterized shading, geometric shadow blocks.
7. Subject head centered in frame.
8. Minimal but bold facial lines, Adobe Illustrator vector look.
9. No photorealism, no watermark, no text.
10. One paragraph under 160 words.

OUTPUT FORMAT
- One English image prompt paragraph.
- A short list: palette, line weight, crop, mood.

Thay nội dung trong dấu [ ] trước khi sử dụng.