I'm watching it And I love it although I wish I liked the costumes more (they're too theatrical and not particularly realistic, especially on characters like Helene and Anna Pavlova, whereas they could have really done far more beautiful and authentic Empire clothing) But her costumes as Natasha are better than the others and she does look lovely in them
I actually think her performance is pretty good. Natasha as a character is quite cringe-worthy, so she does a good job of making her charming