Fun image. I agree with the comments regarding the arm, its a bit stiff and distract from the rest of the pose. I like her expression and more relaxed lower body. The dress is busy but I think it works well for the image.
cheers,
JKH
It seems that the best part of the photo is what is going on with her face - cropping it in so that is the focus more than the stiff arm would be something I would consider trying.
the only problem i can see with her posing is her hand. its unbearably stiff. Other then that she looks quite good. I agree with ErikV, either a crop or a rotation crop would help bring the attention fully to her instead of getting lost up in the leaves
I like it. Kind of edgy and glamorous at the same time :) She looks like she was a good sport and a fun model to work with -- and you did a good job capitalizing on it.
Nice sharpness and lighting, great pattern on the dress, expression here seems fine, eyes are great. You might consider desaturating the greens in the background to de-emphasize that area (and perhaps even crop a bit off the top). Minor suggestion: rotate this slightly so that the ledge/wall is perfectly horizontal.