I don't know how long you have been drawing. It looks pretty well
over all, and would be an acceptable drawing as is. The things I notice
that you could do to make it look better would be in the finer details.
..The eyes look very nice.
..The inside of the ears could use a bit more detail.
..The shading along the ridge of the muzzle gives the
illusion that it's slightly off center with the front of
the muzzle.
The front teeth are a bit irregular.
The drawing though good looks like it was done in a bit of
a hurry.
This is just my opinion of course.
Keep up the nice work.