Now is the time I start adding details in my colors and shading. I often change colors completely. Notice the polka dots on her dress. They started out red. Now they are green and in the end they could change again. The layers of colors will also give it a look that only single colors can not.
I use burnt mber to shade under the chin around the eyes and anywhere I feel needs some depth. There is also more coral and unbleached titanium added to highlight the face. Notice the nostrils ear edges. and chin.
Just play with it. The good thing is its only paint...You can always change anything you are not happy with.
What I love so much about Folk Art.....Its the naiveness and simplicity....You need not be a fine artist to paint your own masterpieces.