Oh wow I really like this one, so dark and deep with emotion. The grey tones and skeletal body of this character is deep and he seems haunted by love and gaurded by it. I love the way the background flows with this and the overall mood it has here. I do love the bits of "RED" in this and the antler like face you have given your character.
~~THINGS TO IMPROVE ON~~
I would maybe try a border that fits with this, maybe a wooden one to give off a painting feeling