A random assortment of images and such that I found in some torrent. There are also some stitched images that are in the artbooks and the like so check it out if you're interested.
If there's one thing that Clamp is good at, it's that their designs are amazing, the clothes, colors, all of them and pass the test of time... Except for the haircuts and sameface syndrome, the sideburns and mullets, dear God. @Harakudoshi: Mullets in general are known to be... well, pretty bad most of the time.