I just kinda worked it out as I went. I'd love to offer a visual cease pattern. Unfortunately the only accurate one I have was what got folded into the final product.
I'm not currently willing to unfold it, since it was such a tedious affair.
The interesting part is when you fold over the flaps created by the triangle twists. It creates a completely diffferent design.
It was rather difficult to fold. Everything was quite closely packed together. I wasn't really sure it was going to work. But the final result was pretty pleasing.