Unless I counted wrong, the numbers don't match up. You need one more Nintendo character for 20 each.

It'd be a decent idea if you removed the summons from playable character status. They don't fit within a fighting game very well, regardless of how you work them. There is a wealth of characters you can replace them with as well. The only other comment would be to include characters from lesser known franchises to give the game a little more variety and less boredom of rehashing characters from well-standing series.