简约现代扁平矢量人像插画

"Create a clean, modern flat vector portrait illustration of the same person in the reference image. Preserve the exact facial features, face shape, expression, black round eyeglasses, and overall hairstyle. Use natural jet-black hair with realistic highlights and texture, styled exactly like the reference—thick, voluminous, slightly messy, and swept upward. Make the beard full, neatly trimmed, and natural black. Dress the person in a plain black crew-neck T-shirt. Replace the background with a solid vibrant green (#2E7D32 or similar). Use smooth gradients, crisp edges, minimal shadows, and a professional Adobe Illustrator/Dribbble-style vector aesthetic. Center the portrait, front-facing, symmetrical composition, shoulders visible, high detail, clean lines, high resolution (4K), with no text, logos, watermarks, or extra objects."

为参考图中的同一个人创作一幅干净、现代的扁平矢量肖像插画。保留准确的面部特征、脸型、表情、黑色圆框眼镜和整体发型。使用具有真实高光和质感的天然乌黑头发，发型与参考图完全一致——厚实、蓬松、略显凌乱且向上扫。使胡须浓密、修剪整齐且呈自然黑色。让此人穿着一件纯黑色圆领T恤。将背景替换为纯色的活力绿色（#2E7D32或类似颜色）。使用平滑的渐变、清晰的边缘、极简的阴影以及专业的Adobe Illustrator/Dribbble风格矢量美学。人像居中，正面，对称构图，露出肩膀，高细节，线条干净，高分辨率（4K），无文字、徽标、水印或多余物品。