At first I didn't realize that there was a skull inside the Demon drawing.This would have made an interesting team. Perhaps they could have teamed up against Marvel's Werewolf by Night, Morbius, Ghost Rider and Man-Thing, (known by the name Legion of Monsters). That's thinking with my 11 year geek self, of course!
I'm not sure why I drew that skull. Yes, superheroes fighting werewolves or vampires is the coolest thing when you're eleven.