Two full face colors

My main regret with this drawing was I should've emphasized her bottom lip coming out without bringing the top lip as far along with it. I can see in this photo exactly what I should have done. I think the issue is my being indecisive about whether I draw them smiling or not. I know that a smile goes a long way in selling a drawing, but if I decide not to draw one I should not just go half way. That's what I did on her. I was trying to expose some teeth.