<https://s.mj.run/bilzKhCBGDs> A realistic portrait of a confident, middle-aged man with short, neatly combed hair, wearing a light yellow shirt, sitting in a modern office chair, the man has a calm and approachable demeanor, with a slight smile, exuding professionalism and warmth, the background features a large, vintage technical blueprint with mechanical designs in sepia tones,the lighting is soft, highlighting the man's face and creating a calm, professional atmosphere.