Modern corporate office, Gartner logo on glass wall, enterprise architecture diagram on whiteboard, middle-aged businessman (40yo) with glasses, suit and tie, standing in front of whiteboard, explaining to colleagues, confident gesture, smiling face, detailed eyes, subtle facial hair, minimal makeup, black leather shoes, polished floor, elegant conference room, wooden table, comfortable chairs, cityscape view from window, sunny day, soft natural light, shallow depth of field, realistic rendering, cinematic composition, high-quality textures.