Hey what's up? Great choice selecting this archtype for a good budget deck. RG Beatdown decks are loads of fun to play with, they're cheap, and the possibilities of card choices are almost endless! That being said, they often get owned by the top decks because of their lack of power cards and brokenness.

Hopefully the people you play with don't like to go Turn 1 Tinker->Win or Turn 1->spell, spell, spell, etc....Tendrils->Win. Ok! With this deck you want to have an identity and yours seems that it's trying to do too many things at once but nothing great. Typically one would pick a path to victory and build a deck around it, I have three common examples below.
-*-
One way is to go old school, straight out balls-to-wall damage with minimal disruption. Personally, I still think it can steal quite a few games and is much more viable than others may say but that's just me. The idea is to lay critters, clear their path, and pump them up for lethal damage. Anyway, a build would look something like this:
4 Kird Ape
4 Rogue Elephant
4 Pouncing Jaguar
4 Tarmogoyf / Skyshroud Elite / Skyshroud Ridgeback
2 Vine Dryad
4 Rancor
1 Fires of Yavimaya
1 Stormbind
4 Lightning Bolt
4 Chain Lightning
4 Giant Growth
2 Bounty of the Hunt
2 Naturalize
2 Scrap
4 Wooded Foothills
4 Taiga
4 Wasteland
3 Forest
1 Strip Mine
1 Black Lotus
1 Mox Emerald
-*-
Another way to go would be the more controlling and disrupting route. I think this is best accomplished by going mono-green with the build. You'd want to build a deck around key cards to include Null Rod, Root Maze, and the Hidden Gibbons/Guerillas enchantments, among others. The plan here is to play either the Aggro/Tempo game depending on the match-up. The deck doesn't really hate on anything particular, but it's decent against most T1 powered decks and aims to either steal a quick win via Hidden Whatever or slow the game down long enough to demand a win via Root Maze, Null Rod, and destroying all of your opponent's stuff. There's threads all around about this but here's the first one I found:
http://www.themanadrain.com/index.php?topic=21527.0-*-
And, my personal opinion and favorite choice would be to go and join MyriadGames and his TMWA cult. TMWA (The Mountain Wins Again) is a new archtype that constantly adapts to the metagame and likes to play fun, simple cards that screw decks over like Gorilla Shaman, Magus of the Moon, Aven Mindscensor, Null Rod, and what have you. There are no rules to TMWA decks, only that they play Mountains. It's a great place to experiment with new cards, new colors, and well...you get the idea. A current thread to get you up to speed can be found here:
http://www.themanadrain.com/index.php?topic=35901.0I'm by no means a R/G pro, but the information that I gave above should do you just fine. Whatever you decide to do, have fun!
V/R
Masta