My advice: Make it bigger!
And put it higher on the canvas
make the snout a bit longer and more square
the forehead is good
ears tilt forewards
wolves are very proud: make the chest fur more fluffy
Front legs go closer to the head (wolves have long necks but not that long) and the soulder is not visible
back legs are sorta fat in the beginning (they fold) and then do down
the point on the back of the leg is the fur tuft
Tail is big and more fluffy
Don't be afraid to go off the page with your drawing
Good Luck!