Keith Thompson?
I think this piece is -amazing-, thumbs up to you for your amazing skills!
However, I do have a question/remark: Is this, by any chance, inspired by Keith Thompson? His art is similarly macabre, and the whole, surreal, multi-limped monstrosity seem very much alike to this - that's not to say they are identical. I noticed that your style differs quite a bit from his, but still, they're definitely in the same direction. :)