I use Buzz Launcher, where I can set Pics that I edit, as Icons and then resize to my liking. But I'm sure other launchers, have the same functionality. ;-)
A month of playing around. I went from waves, to wood back grounds, to this. I think I like this. I even themed my computer to match. Phase beam live wallpaper.
from "left to right", Blinkfeed, 'business page' (Inspired by 'iphone swipe left phone search'), home page, extras page.