It's exactly similar to a victim of Jeffery Dahmer , who was decapitated and posed like this. But the artist, I think I read somewhere, has either denied that this was the inspiration and said it was something else was; or they've never been explicitly asked about it, and have said something else was the inspiration, like a legend or fable of some kind. I can't quite remember the exact details. It is definitely the Dahmer victim though.