I do think the character creations can use more face styles, hair styles & colors, skin colors, and eye colors for Female & Male characters. It's difficult to make a unique character when you have a very limited selection. I also think a bio type of thing would be good so players can create a back story for their characters. The tanks in the Crucible are over powered. Aside from that I loved the beta and I'm as giddy as a school girl in anticipation for the game to come out in 9/9/14. I hope this feedback is useful to you in your journey to make a great game even greater. Good Luck Bungie.
It will have been said before by other people but the lack of customization is deliberate, they will add more option in the full game. If they don't then this would be a bad move. The tank on the other hand is already being nerfed, the stated that during the beta, but will only be applied in the full game. I didn't mind how the tank was, tanks are meant to be OP for a reason. That's just my opinion.