I like the sexy french cut to her costume, and the gold chastity belt is a nice touch. A good attempt.
A few things for future pieces:
You need some shading on her skin underneath the costume, to give shadow seperation to the body. this helps tie in the costume to the model.
It is always important, when combining seperate images like this, to remember
where the light is coming from. The light on the model is coming from above and in front of her, but the light in the image is coming from the setting sun.
Without a doubt, she is one hot sexy WW!
Pray tell, Who's The Model?
BB