Modern software architect, standing in front of a whiteboard, explaining design patterns, wearing black glasses, short brown hair, formal wear, white shirt, dark blue trousers, leather belt, holding a marker pen, pointing to the board, soft focus on the background, blurred out of focus, dimly lit conference room, wooden table, chairs, books and laptops scattered around, morning light streaming through the window, subtle shadows, shallow depth of field, educational atmosphere, cinematic composition.