There's no way these faces "reflect the soul of their original models". Out of the seven original female faces, only one is angry and grumpy, the rest are neutral/semi happy/happy. Now with the new faces we have six angry faces and one that's semi neutral. Look at the new male faces, there's one angry face, two semi happy faces and four happy faces. Lots of options.
It would've been easy to implement a variety of female faces (it still is), so it makes no sense that all we got is angry faces.
This is just my OPINION. Rant over... /facepal