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I am by far an expert so take that into consideration!

I see the subject is in the shade with sort of a blotchy pattern of light on her. There is the reflection in the glasses that is a bit unpleasant for me. I have not been able to do any portraits much with people with glasses so someone else may be able to offer more direction.

I may have considered putting her totally in the shade and using a reflector. For me, I enjoy portraits with the eyes in perfect focus - her right eye is in good focus, the left one not so much. Not exactly sure how to get rid of the reflections - just would tinker with her position I suppose since you are in the shad completely.

Alternatively, you could position her in direct sun under a diffuser....

Hopefully someone else will give you more direction about the glasses, I have no experience in that arena, focus and lighting more tricky with that in the mix.

Take care.