Startup founder, male, 30s, casual wear, jeans, white shirt, black glasses, messy hair, sitting on a modern office chair, in front of a large desk with architectural models, blueprints, and design software, holding a pen, with a creative expression, in a modern minimalist office, natural light, wooden floor, white walls, floor-to-ceiling windows, cityscape view, morning sunlight, warm ambient lighting, cinematic composition, shallow depth of field.