Granted i am just one voice, But i can give you some direction where your wonderful skills could be used:
* Element sound effects are terrible, Fire is choppy 8-bit garbage, Thunder is.. questionable at best, Ice isn't so bad, But i'd love to see what you could do to it.
* Obviously the battle effects, specifically bullets and explosions, are dated.
just with those I'd think you'd be busy for a while, Than again, you seem well versed in your craft. So you'll probably have them done in a day haha. Now i'm not sure if you wanted to be provided the sounds or not, You seemed to do a great job picking them yourself. So i left it at that