Fooling around with some of the same folding concepts behind the star twist v2.1. interestingly enough, doing the same process with a triangle base yields odd hexagonal shapes as one grows increasingly larger.
However, so far they are overly clumsy, and multiple attempts have not found a more desirable folding method. too much extra paper on the reverse so far. time to unfold and try a different attack.
Folded the original design out of unryu, which was much more compliant for such a layered concept- this sheet of standard kami is giving up the ghost.
look for a future photoset detailing a simple method of producing wonderful tessellation paper, soon!