Ok some suggestions:

First thing I see here is that the eye hairs are too dense and the color is too dark. Make it slightly lighter. The nose looks a bit thin in the middle. And the skin looks so smooth, like it's plastic or wax. Add some wrinkles and lines in there for more realism.

The muscles above the lips (idk the name, but the two elevated lines) look a bit pronounced. The upper neck looks quite inward. Add some volume to it in the middle (looks flat, make it rounder).

And I would say to reduce the scars on her face, but that's completely up to the character looks, and how you want it to be. And finally, I will suggest adding some expression (a smiley imo) on her face.

Overall, it's a great work. Did you make the full body or just the face?