How to make a five-pointed modular origami paper star

(page 13)

23.

Start applying one mountain-fold and two valley-folds of the step #21 on both front and back sides.

24.

Complete applying one mountain-fold and two valley-folds of the step #21 on both front and back sides.

Prepare to rotate the model by 90 degrees.

If you have a difficulty in these steps, you are welcome to write a question below.