What are you using it on? Because given the iPod Touch's screen size, "full size" would be low resolution compared to any modern iPhone.
Best I could find is this album: https://photos.google.com/share/AF1...?key=WkZjQTIxQTM5a01oZkNUYTE2ZllKTVJKZk1CMTR3iPod Touch 5th gen. Problem is that this wallpaper disappeared when I upgraded to iOS 9. This is only a tiny image cropped out of another screenshot.