Well, 1, do you use layers?
2) Fangs don't usually show, unless a wolf is baring it's teeth, has a lip problem, is used to showing it's tooth like that, or has overgrown teeth.
3)Your lines are a bit rough. OwO Instead of using straight, use regular. Zoom in on the area you're woorking on, set the smoothness (It's where you change opacity/size) to about 50, and draw. It makes... well, smooth lines.

Same for the mountains.
If you want, I can redline/make another version of it, and add your name to the who can edit so you can see what I did. OwO