I thought that Miya was Yurina from the thumbnail because she's been put in the center a lot lately. But YAY for Miya in the middle! Her hair looks really good in this pic. She should wear it like this more often. Plus, she stands out the most to me. She's just too gorgeous!
I also thought she looked like a lifelike doll in this picture... which wouldn't be surprising if she really was... Japanese are pretty good at making lifelike dolls.
I guess HE is the one who will be wearing the knee pads?