I believe the major problem is that you do not have a proper bone structure in your sculpt. The cheek bones, nasal bone, jaw line. A lot of the fundamental building blocks of your forms are missing right now. Some you have though, for example the chin and the upper eyesocket, but the eye socket does not seem to connect…
It is clearly better, but what gives it the look it have right now is that the lips are pouted up together and not relaxed. it still looks like she is having some kind of duckface. Look at this pair of lips for example. And when it comes to suggestions I think that you should define the bone structure a bit more. Right now…
It's looking better, BUT! I think you're making the mistake I always make, which is sculpting at too high detail level without first nailing the forms, general shape and feel of the character. I would recommend dropping down a sub division level or two, play around pulling/pushing parts of the face, checking at different…