I think that maybe I've done something similar to this before - at least the headless beaverman concept. Not so sure it was mounted on a moose though, and definitely not a zombie moose, nor wielding a chainsaw either. So getting all my tropes in a row plus an exquisite rendering in glorious full-color meant that I went a-head with it. "Return of Night of the Living Alaskan Chainsaw Massacre?' "The Headless Mooseman?"
Bonus post: had more fun playing around with a wash variation... BOO!