I actually think he might look too badass here. A large part of the charm of Discord was that he was mostly playing around. He wasn't malicious in the same way Nightmare Moon or Queen Chrysalis was. The guy in the picture here isn't going to give you cotton candy clouds and chocolate rain. He's gonna give you chloroform clouds and acid rain. No long legged bunnies, this bastard makes rabid rats that shoot lasers from their eyes. The tone is all wrong.
INCREDIBLY WELL DRAWN. If I didn't know the charachter and wasn't nitpicking on how that's not Discord that's some truly evil bastard who looks like Discord I'd be singing praises.