Female Model Critique - New to this, need help!

Female Model Critique - New to this, need help!

While I've done art for years, I'm really new to character modeling and I definitely have problems with the human form.

 

So, the people who give feedback to our game are saying the faces need work. But I don't know where to start, please tear these apart and help me improve them so our players are happy. I would be forever grateful!

 

I should point out that its possible for the player to deform areas of these faces, but this is the base setup, which I really want to get just right before worrying about the deforms/customization available to the player. (I'm ok with them making weird looking characters with the sliders, but I want them to start out at a good baseline.)

 

This is the female model in various lighting situations (and one different hairdo) as they appear in the game, plus a few views of my blender files.

 

https://imgur.com/gallery/QivKzp5

Attachments: 
Preview
femaleExamples.png femaleExamples.png 2.8 Mb [5 download(s)]