Up at the top is the Otaku Attack Force, made up of Sangome, TimberWolf, and Katana. I forget who is who (unfortunately) and I used this fanart as reference... which I ended up botching before it was too late.
...and the only thing I could think of at the time that rhymed with geek, is leek. Sue me.
Thanks to all the members of theO for a really fun place to hang out! Whether I used you as an "example" or not, we are still fellow otaku!