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