Well I can't help with construction but to answer some of our questions, to me the black ruffles look to hang down. As for shoes, someone pointed out in the main thread that closed shoes would be best for her. You'd be safe with either color although black might be a better option since it's less prevalent on the rest of the outfit. Or you could go shoe-less but you'd probably still need something easy to take off/put on, since most cons don't allow people to go barefoot.
Hope that's at least a little helpful.
Tentative Debuts for 2013
Laxus Dreyar (Fairy Tail)