Don't mean to be a bandwidth hog, but here's the final version of the cover. I spent a lot of time in the shader room for the ground with countless spot renders, taking into account the suggestions I received. I lost some of my worm tracks but solved the tiling issue. Not that it shows, but I learned alot. I hope to someday have the control that Mark does. Anyway, I'm putting this one to bed and concentrating on the inside pages.