Yeah it's pretty fucked up. In an interview about getting the role, she was talking about how being comfortable with nudity was a requirement... but there's literally no nudity at all. It's all just walking around with fake tits on.
Prosthetics does not / can not take away from a body's shape, they exclusively add to the shape. Her bodies shape in all three images is the same, and her bust size equal to what was in the show. I know I won't convince a lot of people with this, but I do not believe in the theory of her wearing prosthetics. I think we're looking at her actual breasts.