realistic illustration, 
a creepy scene featuring a dark hallway,
a demon with a psychotic big smile and wide eyes is peaking its head around the corner at the end of the hall, 
scary, frightening, dark madness-inducing artwork that seems created straight from Hell by the Dark Lord Satan himself, demonic, dim light, scary setting, creepy abandoned hallway, the building looks like it was once a hospital before becoming a portal to Hades, 
flawless, 
highest quality