An ultra-realistic portrait of a man in his 40s with a youthful appearance

An ultra-realistic portrait of a man in his 40s with a youthful appearance. He has brown hair, a neatly trimmed beard and green eyes that reflect determination and curiosity. His face is well defined and his expression suggests concentration. He is wearing a dark blue casual shirt. The man is in a home office, surrounded by bookshelves and family photos. He is standing sideways to the camera and facing a wall looking at a built-in safe and a board removed next to it. The environment should be visible, but blurred so as not to distract from the main subject. The lighting should be soft and diffused, with a warm light coming from above, creating subtle shadows that accentuate the man's expression of concentration. 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 curiosity, with a touch of mystery. Suggest a warm color palette, such as browns and golds, that complements the warm atmosphere of the office. The photo should be of high quality, with 8k rendering and extreme detail, maintaining the desired atmosphere and capturing the emotional essence of the moment.