Salute workers,This is a highly detailed 3D CGI illustration of an elderly Asian man teaching in a classroom. The man,with short gray hair and a mustache,wears round glasses,a white shirt,and a gray sweater vest over it. He holds a piece of chalk in his right hand,pointing to a blackboard filled with complex mathematical equations and formulas. His expression is focused and authoritative. The classroom setting includes wooden desks and chairs,with other students visible in the background,suggesting an educational environment. The lighting is bright,with sunlight streaming through a window on the right side of the image. The overall style is realistic,with attention to textures such as the chalkboard's chalk marks and the wood grain of the desks.,