These were made using simple gradients. If you want a tut on how to make em, PM me.
http://img.photobucket.com/albums/v421/Roger_Smith0/HolyRelic.jpg
http://img.photobucket.com/albums/v421/Roger_Smith0/HolySign.jpg
pretty good. how did u do it?
It's easy. Just go into the gradient tool, and for the gradient choose "Spectrum"(it's the rainbow looking one). For mode, it should be "Difference" then go crazy!