卡通扁平化世界著名地标建筑群插画

cartoon style illustration, flat design, clean lines, vibrant colors, collection of world famous landmarks including Eiffel Tower, Leaning Tower of Pisa, Big Ben, Moscow Red Square buildings, Tokyo Tower, Empire State Building, Sydney Opera House, arranged in a semicircle on a hemispherical ground, globe-like composition, bright orange-yellow sun in the center top, simple clouds, light blue sky, dynamic and modern feel, warm yellow and light gray color scheme, gradient background, airplane in the top right, global travel and cultural exchange theme, positive and uplifting atmosphere