a man standing in front of a futuristic city in the form of an orb floating in the sky, concept art, inspired by Yoann Lossel, Artstation contest winner, fantasy art, steampunk hot air balloon, illuminated orbs, andrei riabovitchev symmetrical, 4 k detail fantasy, Sci- fi Environments, star cluster, space stars, clouds, stars, nebula, space art, CyberRealistic_Negative, fenliexl, mixed media, surrealism