Create a realistic portrait drawing of a woman using soft, muted coffee tones

Create a realistic portrait drawing of a woman using soft, muted coffee tones. The portrait should capture fine details in the facial features, with a focus on natural beauty and a serene expression. Use a monochromatic color scheme dominated by different shades of brown, with highlights and shadows to create depth. The overall style should mimic a traditional hand-drawn pencil or charcoal sketch, with a smooth, slightly textured finish. The background should be simple, using light coffee tones to ensure the focus remains on the woman’s face.