These next two are of the winner, and I have to give him props, his costume was definitely the best of all the entries posted on the site. I'm not incredibly fond of the cowl he chose to recreate, but it's in the game and that doesn't change the fact that he did a hell of a job.
This next one is my absolute favorite of anything I've seen so far. Apparently a group of people dressed up for the European release of the game and took to the streets of London in full GCI garb. The guy with the cardboard box mask looks fantastic, exactly as it looks in the game. Great picture too, I absolutely love this.