Cybersecurity expert, male, 30s, muscular build, short black hair, glasses, white shirt, black tie, dark blue suit, standing in front of a futuristic cityscape, skyscraper, neon lights, misty atmosphere, panoramic view, 3/4 composition, soft focus on the background, sharp focus on the expert, dramatic lighting, cinematic mood, hand on hip, confident posture, explaining complex network diagrams, multiple screens displaying code, servers, routers, firewalls, clouds, virtual private networks, intrusion detection systems, encryption algorithms, data flowcharts, futuristic UI design, holographic projections, ambient techno music.