Isn't it also very important how good the actress can show the player beliveable emotional expressions?
Personal I don't like pretty doll faces. I think they are looking always somewhat dull.
I would prefer a attractive face that shows some character.
Since there will be no third Person view, the player will see the face only in cutscene, during conversations and at picking flowers.
Perhaps the female character should smile a little bit if she is picking a beautifull flower and when she is picking a thistle she should look concentrated, because she tries to avoid the stings.