My suggestion is to analyze the reference and extract useful information that could help you improve your sculpt
Also she is in a pose so best thing is to imagine her head as a rectangle which will give you orientation is space once you have that you could fix a camera with the same view so you could check your progress [big red thing]
Squaring the eyes adjusting shape of the eyebrow and fixing jaw cheek line will help get her closer to the concept art [blue stuff dont forget mouth too lower lips is small and squarish top lip is long and curvy]
Both mouth and cheeks should be raised forms ,its one of the reasons why your internal form doesnt look correct
Ogee curve is actually 3 smaller curves one for cheeks one for mouth muscles and one for chin
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