I dug out an old image from my artwork graveyard, I remember keeping it because I liked the design of the creature. I posted the original on this thread quite a while ago, and it turned out it contained so many errors it would have been easier to start again rather than fix it.
What I ended up doing however was cutting out the demon and painting a new image up around him. I know this jigsaw approach is never usually a good idea, so wanted to run it past a second pair of eyes before I went any further. It's called "Orpheus" now, hence the lyre.