Some of the anatomy is really off. Not sure if its a stylistic choice, but I just felt that its strange (like Yun and Yang's head size) and I dunno if its just me, but Ken looks really old for some reason.

ooh if only it had some Dan...
one away from perfect.

Overall this is absolutely fantastic! There's only one bit of criticism I can really offer if you don't mind it, but you can always just stop reading if you don't want to hear it. It's nothing too major though.

The only real issue I see with this piece is with the two men in the foreground (I don't play Street Fighter so I have no clue who they are). They appear to be suffering from a case of Yaoi proportions in that their heads appear small and their hands are freakishly huge.
I'm sure you were trying to put some perspective on it, and I understand that's really damn hard to do, so I'm not going to give you zero stars over that. I see you improving with every piece you post, so it's only natural that you still have things to improve. Keep up the good work!

You know the more I see posted by you the more and more you're improving :o keep it up Mako

Nice! I love how you drew Akuma and Ryu.