Highly detailed insane asylum interior, 1910s, Arkham Horror, Lovecraft, 1920, in style 19 century, unreal engine, fantasy art by Greg Rutkowski, Loish, Rhads, ferdinand knab, Makoto Shinkai and Lois van baarle, ilya kuvshinov, rossdraws, Tom Bagshaw, global illumination, radiant light, detailed and intricate environment