The model looks alright for the most part, but there's several things that could use improvement.
The texture around the face needs a bit of work. I dislike how the eyes seem to stretch around the head.
The model itself seems pretty flat. The dog doesn't appear round at all. His sides appear to be quite flat. They definitely need to become fuller than that.
If you can improve on those two items then the dog will definitely look better. It looks pretty good and cartoony right now, but with fixing those problems, it would definitely look better and more professional.
The texture around the face needs a bit of work. I dislike how the eyes seem to stretch around the head.
The model itself seems pretty flat. The dog doesn't appear round at all. His sides appear to be quite flat. They definitely need to become fuller than that.
If you can improve on those two items then the dog will definitely look better. It looks pretty good and cartoony right now, but with fixing those problems, it would definitely look better and more professional.