Trying to get a likeness with very limited references is going to be an uphill battle, so if you can get more references...the more the better. You have things blocked out nicely, now it's just a matter refining the forms against your reference images to get closer and closer.The form changes on some of your major…
Did you set your camera FoV to be closer to film cameras? It can be hard to get a likeness right if your camera is causing distortion, which can make it difficult to get the exact details right, but also various proportion issues. The position of the cheekbone and brow ridge, and skull is definitely affected by this. Her…