I think I have figured out how to obtain the rest of the flaps to form the remaining pyramids that are not explained there.
Basically I squashed the remaining flaps, petal folded them, then stretched the long tips and I was left with:

So I guess everything that is needed to form the remaining pyramids is there. The only problem is that I don't see a mechanism for the flaps to lock and the instructions clearly say it does not use glue.
So could someone please tell me if what I did to obtain the remaining flaps is corect and if so, how do I lock these?
