Making an open mouth doll is not that difficult. You may have to adjust the pattern you are using for the head, but that is a really simple matter. We will discuss this later.
The downward smile has upturned ends. This is one of the most comm types of a smile. The bottom lip curves up but the top lip curves down.
The down turned smile is one of the most happy smiles. This smile is a grin or a whole mouth smile, and is often the most uncontrolled of all smiles. Or one of the most controlled smiles when one wants to put on a happy face for the camera!
This is not the smile that most people make. Some do, but usually it is only an amused smile or a bemused smile. The sharp upward turn of the smile should begin early or you will end up with the first smile in the diagram. Subtly is the key in creating a smile.
This smile is the downturned smile. Shape the upper lip like a bow with a dip in the center. The lower lip is like a crescent moon turned on its side.
The teeth? That is all in the painting and shading of the mouth. We will get to it!