I kinda like the "big head" look that you had before on the character. The different characteristics, like his blocky chin, gave him personality.
I hope you don't mind, but I did an edit to show what I mean that it gives him more personality. Also, I fixed up a few other things.
Biggest thing was the nose. I wasn't sure if you were going for a Doug nose or just a pig nose. I took the pig nose approach because I wasn't quite sure. I defined the nose a bit by adding a highlight and showed depth by using some shadow.
I hope you don't mind, but I did an edit to show what I mean that it gives him more personality. Also, I fixed up a few other things.
Biggest thing was the nose. I wasn't sure if you were going for a Doug nose or just a pig nose. I took the pig nose approach because I wasn't quite sure. I defined the nose a bit by adding a highlight and showed depth by using some shadow.