Chicago Architecture River Cruise, 90-minute tour, daytime, sunny weather, calm waters, Chicago cityscape, Willis Tower, John Hancock Center, Navy Pier, Wrigley Building, Tribune Tower, historic buildings, modern skyscrapers, riverbanks, trees, flowers, sailboats, speedboats, seagulls flying overhead, gentle ripples on the water surface, warm soft lighting, panoramic view, 3/4 composition, depth of field, cinematic atmosphere.