The original picture the "Brainiac 5 season 3 design" was for. I admit, although its not cannon, I really do enjoy this pairing. I'd like to think Vi would be one of his few close friends (which IS cannon) after he returned to the legion.
Still not too thrilled with Koko's look but gosh darn, that monkey went through five redesigns and its really hard to do terra-looking monkeys without going outside art-style. Of course the pose I picked was ridiculous!
This scene is from a fanfic I have in my head about Brainy returning to the Legion and trying to find his place in the team. The Legion is returning from a mission on another planet and it seems a stowaway has snuck onboard.