That broken chain around Lucifer's ankle was a mistake, though. It isn't really necessary to show his subjugation, and it kind of makes it seem he is hanging rather than falling. I'm going to have to paint it out. Also, I'm going to add stars to the space around him, to show he is falling through material space, having been cast out of God's spiritual realm. The strange mechanistic shapes to either side are intended to show that the Bright One has been exiled to the world of reason and material law, our world that is, which Blake equated to hell.
Related post: Devil on the Floor