Clicked on "making your skin in 8 easy steps" .. But then followed it only through steps 1 and 2 and then did my own thing. It let me put the
background Clay pic there. That background pic is one of mine. All the other pics (also mine) I loaded separately in each block.
It's kinda fun and I keep editing and changing it a bit from time to time.
If you're not bothered about a custom skin with Clay in the background you can go to:
skin library ... then select a skin from there.
Once you've loaded the skin, you can add pictures and text to the individual blocks. So you'll have Clay there, just not in the background.