If that was a poster I'd buy it LOL (I need to buy something soon hehe X) )
Those last 2 large size Risako photos are the precious ones. They are very limited photos and I think sold only during Sakura concert on 6th of May.
That last one, Risako with white/pink checkered dress holding a microphone, is one of the coolest photos of Risako evar. I must scan it @ work & upload then to kakko-ii's Gallery. Actually that photo should be a life size poster!