I was never really interested in double exposure because when i tried it last year none of them came out very good, but after looking at this it make me want to try again to get a better result. I don't understand how they got all the white to stay white though. With the sky on it as well, it should have showed up around the woman as well as on her. I still want to do something like it though.

http://www.pinterest.com/pin/1618549840246627/