This is the Halo 3 version of Cortana. I started this costume almost a year ago and semi finished it over the winter. It then went and sat in my closet for a few months while I pursured other, less obsessive interests. Spurned into action by boredom and and the internet and the announcement of Halo 4, I've pulled her back out to start working on it again. I'm planning to make a chestpiece and add in padding on the butt. I'm also updating my wig with a new cut/stlye and lots of sparkley things.
I made this costume with a lovely sparkley sky blue lycra and a ton of fabric paint. The makeup is mehron.