Create an image of a young man sitting in a classroom with a serious and thought

Create an image of a young man sitting in a classroom with a serious and thoughtful expression. He has short, tousled hair and a focused look on his face, reflecting deep concentration. The background features other students sitting in the classroom, slightly blurred to emphasize the main subject. The overall lighting is soft, with a natural light source coming from a window, casting gentle shadows that add depth to the scene. The mood should convey a sense of contemplation, determination, and focus in an educational environment.