Yes, the idea is creative. I do a lot of silhouettes, and I find they work best were there is more detail to give contrast between the dark and light areas. Perhaps if she had a crooked arm to let light through, or holding her hand up holding something? Two people maybe facing one another? I know from experience that when you see a good silhouette situation you will know it immediately.
This, as you know, is not my area of knowledge. What Rob says makes sense. My humble contribution would be to wonder if a shot such as this needs the head in profile, which, I suppose, is the more 'classic' silhouette pose. That being said, the wisps of hair falling towards the shoulders are, I think, attractive.
I'll add to Donald's "we're no experts" views
First impression, based solely on the colour was "second class postage stamp" - I'd better explain that for the non-UK residents , that blue (and the pose), is quite similar to the UK second class stamp, if you re-shoot on gold, your daughter may be 'promoted' to "First class stamp"
More seriously, I think Donald and Rob are correct about it needing a little more form and shape; the absence of any facial features is probably the most obvious thing apart from body pose.
My vote is for "something creative", well worth more practice I think.
Anyway, what really happened, forget to switch the pocket wizard on?
(Dave ducks for cover)
In practice it's good to build up lighting setups 1 light at a time; I identified a small problem with the key and fill lights spilling light onto the backdrop - but as you can see, but the barn doors on the background light did their thing so that nothing hit the subject
It's interesting. It reminds me a little of what people used to do before cameras...trace a silhouette to get a likeness. I would like this more if facial features were discernable...even if just barely.
I can only echo the thoughts of others in that the silhouette needs more details. The hair although well captured is not enough to convey personality. I am guessing that when the operation of that monster lighting set up becomes second nature your creativity will run riot
It's certainly interesting: what about mounting this as a pair with one that's shot normally, either with the same background or with a differently colored background? Maybe redo this shot with a yellow background, and use violet as the background for the "real" portrait, so you can use complements without having orange?