It's not difficult to see that it's just hex twists with teardrop shaped petals attached to it. To create the repetitions I simply added additional hex twists off the center that connected to the central axes.
Only caveat is to leave enough space between to fit the petals of the repeaters. To the best of my recollection I left 4 pleats between. I wanted to leave more, but the paper size/grid size didn't allow for it.
I actually saw a similar design that left more space between each, which looked really nice. But bigger grids required bigger paper or at the very least more patience.
I was actually more struck by the pattern that formed on the back side of the paper. It was an unexpected surprise.
A gorgeous series of stars connected by angular veins.
Even though it's a fairly simple construction, the end results are pretty spectacular.