Chiyoko had already recorded a very helpful video for her fashion-show-style costume contest format, but what about everything else concerning CCs? Well, with all respect for Chi, Flare (of Contests-Central) had created a very in-depth forum post concerning everything CC, back in August of 2012, which I link to here.
Follow this guide, and you'll never go wrong. You can, of course, modify this format, and both Chi, myself and others have done so several times, but be aware that the basic format always seems to work the best for beginners.
Running your own Costume Contest
Sapphiechu / May 11, 2014