Ah, your best picture yet! And yes, that is because it depicts a beautiful woman human. I was a bit disappointed you couldn't make this THAT good. For someone as beautiful as Yoko, it seemed nearly impossible for you to not make this perfect. I guess it might just be because her design is already so well done. I was a bit turned off by the eyes.
I hope everything went well at Anime Expo. With guys as talented as you too, it couldn't have done wrong! I do think you got her tan skin down really well. Then again, I don't think that's quite how it's shown in the show. Please give us a Joanna picture!