River tour architecture, European-style riverside building, grand staircase, white marble columns, intricately carved wooden doors, large glass windows, ornate iron railings, vibrant flower arrangements, riverside promenade, sunset time, warm golden light, calm water reflection, few sailboats and yachts docked, seagulls flying overhead, lush green trees lining the riverbank, distant cityscape, soft ambient lighting, cinematic composition, panoramic view.