Beautiful! Paula Nadelstern is a proponent of a very intricate and beautiful kaleidoscope technique - check out her site
http://www.paulanadelstern.com/. Her fabrics are designed with this in mind and I think that most would work great with the somewhat more straightforward OBW technique. I got one of Paula's books but it is soooo intricate that I don't think I'll be trying it any time soon. :shock: Her work is mind blowing though. :-D