Hello there! I haven't tweaked the costume yet, but I'm planning on doing it for October or November. ( I've been occupied with school and things related to it. )
As for the shoulders, they did give me problems to wear them, however I used straps inside of them, so both shoulders are connected and the cape is concealing them. - However I must say... That after adding padding to the forearm pieces, the straps weren't needed, as they kept the shoulders in place.