I got the crease pattern from his flickr. It wound up looking and folding different than I thought it would.
For me, it was more difficult than some of his other flagstones. The transitions between the repetitions proved somewhat troublesome. By the time I figured out the nature of the connections, some were already too far gone to truly perfect.
Origin Crease Pattern
I have been attempting to come up with some new original designs. I have a few in the works. We'll see how that unfolds.