Brainiac 5

Some freelance for The Legion of Super Heroes when they first started the show.
Brainiac 5, body turn, rough pencil.
The Legion of Super Heroes was an animated television series produced by Warner Bros. Animation that debuted on September 23, 2006, based on characters appearing in the DC Comics series. The series centers on the young Superman's adventures in the 31st century, fighting alongside a group of futuristic superheroes known as the "Legion of Super-Heroes".