Modern conference hall, 2023 international architectural summit, mature male speaker, standing, confident posture, black glasses, short hair, formal wear, white shirt, black tie, black trousers, leather shoes, microphone in hand, gesture while speaking, wooden podium, sleek lines, minimalist interior design, floor-to-ceiling windows, urban cityscape outside, sunny day, warm natural light, 3/4 composition, shallow depth of field, professional atmosphere.