Not bad, to say your new to modelling. It has far too many polys compared to how it looks in my opinion, it looks like a 1000 maybe less. You should make sure you use every poly effectively and get rid of the excess.
Modelling and texturing is something that takes years to learn and become good at, its not something you can instantly learn by reading a book. Keep trying, learning and getting better.
Cheers,
Ryan.