Drawing animals, it's good, but you must can draw humans too. I agree with Ban Cat, use photos as reference is the better way to improve.
For the human's anatomy, i know a good site with models and posings :
http://www.posemaniacs.com/You can also draw your friends or mother or father or anybody else !
If you want draw animals, you must draw different animals, not only wolves or only dogs. A lot of people here make the fatal mistake, and i don't think it's very good for them...
In every case, if you have any question about your drawings, i can try to help you.
