Actually, these are not pantyhose(that would be weird?!), but a piece of sheer material that is a piece of the outfit draped over her leg. (Just thought I would clarify for the masses that don't get it)
I like the expression on her face, not sure if the stockings work here though. I found it distracts.
Regarding some of the comments, just rise above it and create images that have the right feel to them, I think yours does :o)
I thought this was a photo contest not a childish jab contest. You all need to grow up. To those of you that made made mature comments that were actually about photography, thank you for the advice.
Wonderful picture. Love how he is tenderly touching her belly and looking at her. Her expression is great too. The only suggestion I have is the pantyhose is a bit distracting, maybe crop up to the belly.
The lighting looks a little flat. Boosting the contrast would have helped this image a lot. Adding a light from behind to separate them from the backdrop a little would have also been a nice touch.