...

I think if you could see the top of her head and cropped some off the bottom this would of been nice, But not to keen on it as it is.

Just my opinion like....

To be contrary..I think the black surround gives this portrait a real edge, but what the heck, just looking into her eyes is more that enough to win me over. a beautiful portrait. Was the lady pleased with it?

I think the pic' is good. She has beautiful eyes, the tight crop accentuates the face and the story in the face keeps you there.
I've been working in sepia for a couple of days now and I am sure that if the background was burned and dodged to add a little more light and shade as a background. Then cropped tighter to the hair at the side and then sepia toned, it would be an interesting experiment for you.
Please do not think this is a criticism, It isn't. I think that it would give you another aspect of a good pic'.
Rex,

I like the lighting on her face and her expression but what I don't like is the floating head.

To me, it just doesn't look natural, I like her her going down but it just looks....dare I say...Odd

She's a beautiful model who deserves a body!

Paul