Originally, "drag balls" were formal dances sponsored by GLBT organizations (often a college or university GLBT group) in which the attendees crossdressed. Males wore evening gowns and females wore tuxedos or other formal or semi-formal wear.
Google "drag ball" and you will find a few examples.
Some time ago, I did just that and came across unique before and after photographs of drag ball attendees in normal wear and in drag ball wear. The photos were unique because it depicted a group of five males before and after they donned their gay apparel. (You can find a lot of before and after photos of individuals on the Internet, but almost never before and after photos of a group.)
Regrettably, I lost the information concerning who is depicted in the photo and where the drag ball took place. However, I do have the photos and am pleased to display them here and announce that the the Femulate Awards Committee has bestowed the coveted Excellence in Femulation Award upon this group of five unknown femulators.
(As always, click on the photo to magnify it.)