Wonderful lighting and posing. I would have pulled down her shirt where it rides up on the side of the chair and I would have had her take her shoes off...since people usally don't put shoes on the furniture...
A very well done portrait. Has the feel of the old masters by virtue of the chair upholstery and the lighting, yet is very modern by virture of her clothing, her body build, and the chair style. It's a nice blend.