Mmm... Not bad...
It'sd certainly not bad for a first music piece... Would that my first had been that good. :P
You could be capable of good stuff in future, but this one isn't that great on its own. The quality seems a little... Tin-fuzzy, if you know what I mean. It's a decent foot-tapper, but really doesn't have much variation. I'd say this is more like rhythmic white noise than music.