While pinning my previous post onto my pinterest board, I've come across this picture. I tried to find the original web-site for it... but I could not figure it out... However, this lady is worth mentioning :) This is probably the most famous Russian ballerina of all times. Her name is Anna Pavlova.
This is her costume for her Russian Dance. There is a little bit of her bio here. I do not think there is a good reason for copying it...
Interesting enough, there are videos of her dancing on youtube! Not in this costume, alas... Evidently, she was famous for her Dying Swan dance. Here is a short video of it: