How to make a 3D four-pointed origami star

(page 14)

25.

Turn the model over.

This is the same as the step #14.

Prepare to repeat the steps #15-24.

26.

Repeat the steps #15-24.

Now, we need to apply a folding technique called "outside reverse-fold".

Prepare for two valley-folds (1 & 2) followed by one mountain-fold (3) and the final valley-fold (4).