Oh. explained my thoughts, or reasons behind it inside one of your other avatar questions (the last one which was the first one for me to answer, makes sense). Anyway, yes it does reflect me in some ways. I have never used this one on any other site. I have with some of my themed ones (the Christmas one I used on EP too during the December month).
For me ... one of the things that I've noticed about avatars is by the time you down-size a picture so that it's small enough to use as an avatar, it can become difficult to make out what it is. So that became a priority. Choosing a "dime-sized" picture of something that was still recognizable. After much photo editing, cropping, etc., I chose what you see.
In regard to subject matter, I would like to believe that reflects a small part of me .... ill-mannered, but adorable: callous, but charming: annoying, but witty: repulsive, but cute: and just generally perfect, but humble about it. :)
Have I used it on another site? "No." .... and now you know the rest of the story.
That downsizing can be a big problem. I often go to a user's profile page to get a decent look at the picture if it's interesting. My eyes aren't good enough to make out some of the small pictures.
As I said, it is a selfie, albeit changed to black and white. Incidentally, Harry is the makers name for the style of sunglasses I am wearing in the photo. The Demon part came when I was on EP and I saw a posting from a girl which said that demons were real.
My last avatar was a selfie of me but I took it at an angle so my hair covered up my face because I'm kind of shy but I thought that since that avatar was five years old I should pick a new one but since I'm still kind of shy I just picked China Girl because I was told the character has my personality.