The speech bubble looks a bit weird. It looks like a baseball bat or something. It would be better if you made it a lil more normal. Like
this or something, except longer.
Other than that, I still don't know what to think. Most of it isn't done, of course, but I'm not really liking the back from what you've made so far. I really hope you can make it express anger artistically rather than just text that says 'I'm just a bit bi-furious', which I don't think even is general enough to be the main heading on the back. I would make it say something else, but if you do that, then the little way you've expressed anger is gone too.
I dunno about this ... if you wanna express emotion, you really need to show it artistically and it should be obvious. I would just go for another game.