Wouah there are so much cool new entries! I really love Granamir's sketch and Sha's comic style kicks asses! I love the spartan look of He-Man.
Well here's mine. I chose to make him look a little bit like a greek half-god. I know there are mistakes in my drawing and I'd try to do it better if did it again, especially on coloring.
He-Man Redesign by ~LE-KA-DU-CE on deviantART