Lucifer was not always the Devil, he was a humble servant of God. Over the years he grew tired of the way humans were treated better than Angels and started a war. He was not one to follow the rules, but to make his own.
We all know how this went, this image is his transformation both physically but metaphorically into Satan.
I enjoyed making this piece as it showed 'the unclean one' as a battle worn soul, half the saintly angel and half the monstrous Prince of Darkness/ Father of lies / Old Scratch...