Mad scientist, messy hair, thick black-rimmed glasses, lab coat, white shirt, dark blue trousers, worn-out sneakers, holding a test tube, standing in front of a cluttered laboratory table, surrounded by various scientific equipment, beakers, and wires, dimly lit room with a single flickering light bulb, dusty old books and papers scattered everywhere, steam punk-inspired machinery in the background, warm and cozy atmosphere, cinematic close-up shot, shallow depth of field.