I have officially worked on this costume more than any other costume ever. This is my baby! However, it took a year for me to be happy with it. I completely messed up the back of the dress the first time around. I made some rather stupid patterning mistakes and had to make some not-so-pretty modifications to the back in order to make it wearable. Right before Fanime 2010 I separated the dress into a skirt and bodice, and completely remade the bodice. It's so pretty fron the back now! I'd still like to make a big bow to go on the back.
I made a PDF booklet documenting the steps I took to make this gown. Sorry, it's impossible to c/p that here! You can find the PDF at http://cosplay.watashidakeni.net/images/oscardress/oscar-low.pdf
Best of Division: Individual Craftsmanship at Fanime 2009