Welp, that Tsu break didn't last long as the next image I got in 2012 was from her. This one is of her character, Zippo (left), alongside my own Seth (right). You can probably begin to gather that Seth was a common-used character around this point from his three consecutive images.
There's kinda a lot of story behind this one, and it'd take a long time to go in-depth. The main thing to note is that both characters are friends, probably with their fair shares of deep psychological problems, both of indefinable species and both with bizarre mutations. Worth noting that as I believe this is currenly the only drawn image where Seth's freaky right arm is on full display.

Art by Tsurugi http://tspuun.deviantart.com/

Zippo belongs to Tsurugi http://tspuun.deviantart.com/
Seth belongs to myself  Dregan