[Corvina]

Thanks cutie for the explanation!
I love this picture!

I take Kumi's, it's way more artistic. It isn't very consistent, there isn't s theme for her calendar like for Ayu's. I like Ayu's calendar, but her cute and dumb face expression on three of them kills it for me.
I like 3 pics from Ayu's, 4+cover from Kumi's - so Kuu for me.