Immerse yourself in a fantastical, dreamlike panorama inspired by the vivid and whimsical art of Moebius. This scene marries the mystique of a rainbow-colored, star-studded sky with the architectural marvel of a floating city, where buildings crowned with spires reach audaciously into the cosmos. The cityscape, a vibrant tapestry of futuristic and alien architecture, seems suspended above a cloud ocean, creating an inspiring sense of grandeur and otherworldly allure. Flying vehicles and saucers dot the horizon, enhancing the space opera essence of the illustration. This vibrant, airbrushed vision portrays a surreal and colorful escape into a sci-fi fantasy, rendered in a palette that echoes the adventurous spirit of 70s concept art.