Last one. :) Let's see what you guys can find.
For reference: all the walls I posted are screenshots from the blu-ray version of the Makoto Shinkai movie "5cm Per Second", also known as the only anime you can just screenshot at any point and have it be gorgeous walls. I highly advise checking out his work.
Rapidshit of all the walls (this is just a personal selection) as well as those from another Shinkai work, "The Place Promised In Our Early Days" -
http://www.megaupload.com/?d=ej4kcrnm