chuasam said:
I don't know her well enough (obviously) but her smile seemed really forced and fake.
Try to get her to really relax.
She has beautfiul teeth, but the consistency in her smile from frame to frame makes me think that she's still using her "picture face"; the one that she's developed over her early lifetime, and which has become the expression she goes to for every picture. This is a fairly common situation, but it does seem that she was not yet fully, truly relaxed with the picture-taking process that was going on right then. It can be difficult to get a really truly free, open, relaxed expression in a short photo session, and shooting tripod-mounted and at slowish shutter speeds can make many subjects kind of tense up, and the slowish shutter speeds sort of makes the photgrapher nervous too.
The best part of the shoot is how attractive and healty she looks, and how well put-together her wardrobe is, with good jewlery, a smart outfit, and well-manicured fingernails in that very modern white nails style, a pedicure, etc. A lot of times I've seen women show up for photo shoots with quite bad nail polish in this type of one-person photo shoot, and the lack of attention to details can spoil many poses where the nails or hands show.