Is this supposed supposed to be Annie? She looks too tall to be a Yordle
http://danbooru.me/posts/2028112?tags=gia Same hair color, same body type, same hairpin, same fac...wait, that doesn't count in this type of art. Well, anyways, I'd say that it's the artist's original character rather than the Annie Hastur we know and love; she just wasn't tagged properly, gonna fix that now.