Modern online classroom, e-learning platform, mature lady instructor, stylish short hair, minimal makeup, elegant blouse, formal pantsuit, standing in front of a digital whiteboard, lecturing on architectural lighting design, various diagrams and illustrations displayed, bright and airy atmosphere, warm softbox lighting, shallow depth of field, 3/4 composition, cinematic angle, slight Dutch tilt, online course banner in the background, HD display, sleek laptop on the desk.