You asked me what you can do to improve this. The main area that stands out to me is the chest. There needs to be room for the rib cage. Naturally that area will be the widest area of the dog/wolf. The shoulders don't look attached right either. The shoulder area goes up higher. As far as drawing legs and paws I struggle right there with you trying to get them looking right. One thing that has helped is to think of the front legs being like our arms and the hind legs being like our legs. Only the heels come up higher on canines and they don't walk on them. And the wrist area being longer and stiffer on canines.
Face: Ears come lower on the head and further back.
Hind quarters: The leg farthest back would likely not be spaced that far apart from the angle you're drawing. As far as how to make it better, I struggle with legs and I would probably come up with something just as awkward. I look at various photos (not drawings if I can avoid it) to get an idea how the legs work and try my best not to copy their pose.
I googled up a template for reference:
http://www.soappuppy.com/wolf/big/1skel.jpgand this that someone on a forum gathered together:
http://www.animationsource.org/board/wo ... 11729.html
Looking for: Halloween 2019 pets. I have tokens but missed the trade in times due to no internet access the end of October.