I like this, but I wonder if it wouldn't be better if the "body" was more upright, and the angle between the "body" and "neck was more acute. It would have more of a "big scary, monster looking down it's nose at a mere human victim" feeling, at least in my head.
It does rather remind me of some of the images of Phyrexians in Magic: The Gathering, especially the priest/captain-level guys. It's more the feeling I'm thinking of, rather than any real physical resemblance, though.