Well, not that they're bad cards, but for a beast deck, this has surprisingly few beasts. One card you might want to look at is
Advocate of The Beast . He gives one beast you control a +1/+1/ counter on your end step. With a couple of those buggers out, you can have some mean per-turn ramping.
Green/red is also a good option for Beast decks if you don't mind multi-colour decks.
I have a green/red Beast deck that I'm waiting to order until my usual website has all the cards in stock, and I'm expecting it to do well, although it could use some card-cutting. It has a lot of good cards, and might be useful to look at for reference.
Good luck! (: