That happened to me as well. Sometimes it looks like it's changed to some people but not others - it can take a while for your computer to update.
Take GK1 for example! I gave her an avatar and she put it on, and for days everybody BUT me could see it. Then finally my computer "noticed" the change and everything was fine! Probably your computer hasn't noticed the change yet.
StarTama
P.S. When I look at your avatar, I see these ears with a thought/speech bubble on top. Is that what you tried to get or am I looking at your old avatar?
When the "Thanks, Avatar Choice Updated Message, please wait while we transfer you (or click here if you dod not wish to wait message)" comes up, DO NOT click (or click here if you do not wish to wait), as your avatar will not change.