Hmm, a bit young-looking and scar-less for someone of Megatron's age and experience, but it could easily be a depiction of him when he was just starting his legendary war with the Autobots, so it's good.
Hmm... I believe, Che and Hitler are absolutely different kind of personalities. Of course, nobody can deny, that G1 Megatron looks exactly like nazi. But this is Origin Megatron, and he is totally different hero.