I like the pose and composition. The expression comes through well. I agree with a previous suggestion on using a hair light slightly behind and above her, also have her move out further from the background to give a sense of depth to the image.
It seems as though near her left hand on her shoulder there is either some lens flare, dirty lens, or movement of the hand. I would figure out what that is, other than that I think that this is very nice!
this would look great with a little hair-light (light that goes behind your subject and outlines the hair and shoulders) and a little darker background. and i over use this in every picture, but, i would darken up the corners of the background more than the center the frame in the whole thing. Over all really good. i like it.
I like this portrait. Very nice pose and “glamour” look make this image interesting.
A bit tighter crop from the top and separation from the background would help to make it even more interesting. Maybe some hair light or background light.