Ultra-realistic portrait of a man in his 40s. He has brown hair with a few white

Ultra-realistic portrait of a man in his 40s. He has brown hair with a few white strands, a neatly trimmed beard and green eyes that reflect determination and concern. His face is well defined, and his expression suggests seriousness and reflection. The portrait should be from the waist up. He is wearing a casual shirt. The man is sitting in a home office, with a laptop open in front of him. The environment should include elements such as a desk and a bookcase, but should be blurred so as not to distract from the main subject. The lighting should be soft and natural, with morning light coming in from a window, creating subtle shadows that accentuate the man's expression of determination. The light should highlight the green eyes and the texture of the skin, emphasizing the seriousness of the situation. The image should convey a sense of determination and concern, with a touch of tension. Suggest a neutral color palette, such as grays and browns, that complements the office atmosphere. The photo should be of high quality, with 8k rendering and extreme detail, capturing the emotional essence of the moment.