Wicked Stepsister

I'm thinking of turning this concept into a children's book with a bit of a retelling of Cinderella's story. One of the step-sisters is the one to help Cinderella, as opposed to a fairy godmother. And this is a portrait of said step-sister. I've dubbed her "Anastasia", though I don't think that'll be her actual name. I'm thinking of letting her remain as "Older step-sister" or something of the sort, while the younger step-sister would be cruel to Cinderella. I'm still workshopping the whole thing.

I drew this on paper and later painted over it in Clip Studio Paint. So here are both the sketch and finished product.