I love that she it's like she's wearing a cape, but not at the same time. The bottom is very cape-like and flowy (which is the reason why I wish capes were still in fashion) and the top is like a normal jacket. I just love the entire outfit, although I would never be able to pull something like this off, not even for Halloween.
I also really love her makeup on the show. I want to learn how to do it: