Well, it takes the prize for the most unusal prop used in a materinity shot. That said, this does not work well in my opinion. You key light was too hot, and there's a strange, orange tone to her skin.
I'm not fond of the angle, nor the cropped posterior, and I would really reconsider the use of the lead-rope. I find that the use of the leather and the knot almost gives the image an S&M feel to it. If it's symbolic to the client, consider incorporating in an other way.
Just my $00.02 worth - your mileage may vary.
~John