Its cute...kool...dark....idk y but kinda looks Harry Potter-ish...7/10 (cuz i dont know what ur going for)>>{If its Dark then yeah 9/10 hair should probably be dark}
7/10 Your avatar can stand alone without the background.

9/10 Lolita hat of some kind would be really cute. I love it. Maybe try a button up shirt under the corset, might look cute might suck ^_^
Well, even if the theme is used a lot you did a nice job. But I'm distracted by the background, I don't think it's really needed. 8/10
I like it a lot. Though the wig really stands out (since you've used almost all black/gray) it still looks nice. I also like the background with it. I'd keep it. I think the avatar would look a bit dull without it. 8/10.
(lol I remember going through a phase where I wore that wig with almost EVERY avatar, whether it matched/flowed or not :P)