This is my first attempt at a gamertag. The emblem is a clan emblem, which my buddy created in the game. There is a basic clan emblem generator once you unlock achievements. I went with a Matrixy vibe, due to my gamertag "code of silenz".
Have to say, Im super impressed with Paint.net. I just downloaded it today. I have no background in video/picture editing, but yet professional looking pieces can be created.