Chicago cityscape, 45-minute architecture boat tour, sunny afternoon, calm Lake Michigan waters, modern skyscrapers, Willis Tower, John Hancock Center, Tribune Tower, Wrigley Building, ornate bridges, luxurious yacht, sleek hull, white sail, passengers taking photos, guide speaking through a microphone, soft breeze, gentle waves, distant seagulls flying overhead, vibrant city life, urban landscape, panoramic view, 3/4 composition, warm lighting, HDR.