cartoon background, skyscraper entrance at the top of a mountain, night, trending on artstation, pixiv, hyperdetailed unreal engine 4k 8k ultra hd, stanley artgerm lau, wlop, rossdraws, james jean marc simonetti ruan jia and mandy jurgens and artgerm and william-adolphe bouguerea sakimichan, yuru camp,  illustration, digital art, concept art