Marza is dancing. (It's what she does.)
She dances beautifully, which is a secondary consideration to her. More importantly, she dances perfectly. It takes talent, and rather a lot of other things, like a winning temperament and intensive training from the age of five and, in some cases, amphetamines.
(Marza doesn't do speed. She's this good on her own, and she certainly doesn't need to be twitching.)
She's dancing Odile, at the moment. Swan Lake is old hat, but that doesn't mean it's not a classic. And it does draw a crowd.