I... actually don't totally remember. But I'm pretty sure I Googled pictures of Catwoman one day when I was drawing her and needed references, stumbled upon this gem and saved it to my photo library for future avatar purposes. I love it because it looks like Catwoman if Audrey Hepburn played her.
My current avatar is the seventh Time Machine Lord, Hailon. The Time Machine Lords are a series of monsters in Yu-Gi-Oh - that specifically appear by the end of one of the series' awesome spin-offs, AKA 5D's - and are the godly representations of the Kabbalah's sefirots (so, the ten numbers/attributes of it, if you will).
I always enjoyed how Yu-Gi-Oh took cultural, mythological or religious aspects of either art or history and incorporated in its world to make the strangest, and sometimes coolest matchups possible, with each representing the personality of the user depending on, well, how they used them. In this case, the Time Machine Lords pretty much represent the user's wish to play God when he shouldn't and are about as artificial as he is - which I find especially cool because the said user tried absolutely everything to save his world using futuristic technology, and basically made himself into an actual, artificial, human-born godlike being.
Since I love all of 'em, I use one per month. For the first month though, I just use the Time Maiden, who's the one who can summon 'em when they can't summon themselves. And that makes 12 awesome avatars to switch from!
"Is there a limit to how much living I can live with my life? How will I know if I've gone too far? And why did I spend my life savings on sunglasses for a whale? I shall find the answers... to these questions."