something about the mouth bothers me man...
it might be how every other part has a black outline, and the mouth has a light pink one.
i know you're trying to go for the lips look but i think putting a thin black outline will make it more appealing
I believe the mouth is okay. But the nose. From the angle we see the whole face, the nose shouldn't be so, I guess you could say, angled to the right (our left).
Maybe make it a bigger nose and very red. Since that's his CocaCola branded look. If that's too much trouble this far down the road, leave as is. This looks great just like it is. Would just prefer a fatter nose that ain't angled. :v
3d preview
Flat
Looks much better dude. It's looking a lot better now. Maybe make it a bit red as well just cuz he a jolly dude. That's just what id think. :P
edit: was wondering. do you use a mouse or use a stylist?