I've always been interested in Sasha's work, and I remember coming across Dorothea's blog and loving her photographs. I wish I could remember where I found that.
In every interview I read with Lily Donaldson she mentions painting and how much she enjoys it. She took art in high school and would have continued on to art school had she not become a model, she takes life form classes... but I don't think she has ever shared her work.