a vibrant, surreal digital artwork depicting a massive whale floating in the sky, carrying a cityscape on its back. The whale is detailed with shades of blue and gray, with reflections of sunlight creating a shimmering effect on its skin. The city on its back features modern skyscrapers and lush greenery, suggesting a harmonious blend of nature and urban life. Below, a coastal city with buildings of varying heights is visible, with some structures covered in vegetation. The sky is a bright blue, filled with fluffy white clouds and numerous birds flying around, enhancing the sense of movement and scale. The overall composition is dynamic, with a sense of wonder and fantasy, capturing a dreamlike scene where nature and civilization coexist in an imaginative world.