excellent portrati for marina but the mouth seems to be unnaturally brilliant disturbing a bit and competing with the brilliant eyes creating in thus manner a confusion in the observer, in my opinion
I like the very natural skin tones and the somewhat subdued palette in this photo. You chose the background really well for this purpose IMO. As presented it looks a tad oversharpened and overcompressed to me. The pose feels very natural although it is clear that she is perpared for you taking this photo. It feels as if she is just turning her head and that adds a dynamic feel.