写实摄影风格莱茵河科隆大教堂霍亨索伦桥游船城市风光

realistic style photo, main colors blue and gray, color scheme includes white, green, and brown, Cologne Cathedral on the left, Gothic architecture, twin spires, Hohenzollern Bridge in front, steel arch bridge, river with boats, greenery and buildings on both banks, clear blue sky with few clouds, distant city skyline, detailed textures, serene and harmonious atmosphere, blend of historical and modern European city life