I appreciate the design that went into the Black Butterfly outfits but something about them doesn't sit well with me. Like Otaku said, there's something slightly awkward about them.
I think it might be that the color, which is fairly heavy/restrictive, in combination with the voluminous lace with the silver butterfly accents adding even more weight makes it hard for these outfits to look comfortable (even if they are).
As Nina Garcia or Tim Gunn would say I think these were just over designed. A few edits and these outfits would have looked more polished.