[Susiron]

I drew a hind leg for this so it's not necessarily the best reference, but hind legs are more curvy than the front so I figure it's a good show of how limber a leg may need to be.

In general, paws shouldn't show all of the toes, and legs aren't straight. Try to work on defining joints, and portraying the digits more wolf-like.
I'm reminded of a simian with your tutorial, not a canine.
I really think that you should work on your own anatomy before going into tutorials. There are tutorials online, as well as photographs, that can help you.

http://browse.deviantart.com/?qh=&secti ... s#/d37iki0

http://sikaris.deviantart.com/#/d349kow

Observe how paws work in HQ drawings and photographs to get a better idea of how to draw them.