It's lovely, Murray- truly.
The proportions look pretty good- you have to remember, that is not a "normal" human pose; I mean, where have you ever seen it other than in a ballerina en pointe? So when you do see it on a ballerina en pointe, it looks a bit unnatural because it is.
But, you've caught the grace and wonder of ballet here- truly lovely.
I like the way the right hand fades away from us, and the stretch of the pose is felt in her arms and shoulder muscles. And, again here, I like the filmy, diaphanous look of her costume- this is really, really good, Murray.