There is a man with a beard and a mustache sitting in a chair

Portrait of a 35-year-old adult man with a youthful appearance, with himself as the main subject. He is in an indoor environment, suggesting an office. The man should be slightly to the right of center, looking directly at the camera with a serious, worried expression. He should have short, slightly wavy dark brown hair and a sparse beard evenly distributed across his face. The lighting should be natural, soft and from the side, evenly illuminating the man's face and creating subtle shadows. The blurred background should be an office, adding depth to the image. Items such as a desk, chairs, bookshelf, books, lamps and office objects should be present, but blurred so as not to distract the man's attention. Use a warm, natural color palette, with wood tones and soft, natural lighting, creating a welcoming, professional atmosphere. The photograph should capture extreme detail, with a high-quality rendering in 8k, with professional photographic quality. The image must be high resolution with attention to detail and realism.