A large castle in the sky with a lot of clouds

Ultra-large huge flat cities floating in the high sky behind on the clouds, precision mechanical device, air vehicle, environmental concept art, mystery, cg scene design, large scene, epic feeling, strong contrast between light and dark, dreamy night theme style, Realistic style, architectural photography, ultra-high details, <lora:xl_floating:0.6> floating island, surreal <lora:add-detail-xl:0.5>