Sorry for my sketchiness, mouse kept stuffing up. Anyway I wasn't sure what type you drew in, so I redlined for a realistic cartoony type, my most commonly used drawing style. If you can't read my bad writing here are the things I edited:
1: The legs need to be thicker. The legs you drew were very thin, uncommon for wolves. So I just made them thicker :3
2: The neck must be thinner, unless it's a really furry wolf. You do have to remember there is fur there, but not so much it's neck is a poof ball
3: The head really needed to be a bit longer and altogether bigger. It seemed a bit small in comparison to the rest of the wolf.
4: The ears need to be a bit more set back. It made it seem that, from where you drew it, the bottom of the ears was right next to the eye, when it should have been a bit farther back on the head :3
Hope this helps!
~Mimi
1: The legs need to be thicker. The legs you drew were very thin, uncommon for wolves. So I just made them thicker :3
2: The neck must be thinner, unless it's a really furry wolf. You do have to remember there is fur there, but not so much it's neck is a poof ball

3: The head really needed to be a bit longer and altogether bigger. It seemed a bit small in comparison to the rest of the wolf.
4: The ears need to be a bit more set back. It made it seem that, from where you drew it, the bottom of the ears was right next to the eye, when it should have been a bit farther back on the head :3
Hope this helps!
~Mimi