Michael and Lucifer are companion pieces. Michael is traditionally the head of the Archangels who is usually portrayed as a warrior in the act of casting out the devil. I found an interesting fact in which the archangels are described as "bright dragons", which I incorporated into the borders; on one side depicting Michael as a dragon and Lucifer as a human and on the other side showing Michael in human form and Lucifer as the dragon. I think it makes an interesting point.
It is said that Michael has never been seen smiling since the creation of Hell (or the casting out of Lucifer). I believe it is because he feels regret. I believe Michael respects Lucifer and that the act of casting her out causes him to question his own faith.
Michael has seven hidden Turtles.