How to make a 3D origami wagon

(page 5)

7th picture of 3Dbnorigami wagon

07.

Apply four vertical "valley-folds" of the step #6 and then unfold.

Prepare to apply eight horizontal "valley-folds" and then unfold.

8th picture of 3Dbnorigami wagon

08.

Apply eight horizontal "valley-folds" of the step #7 and then unfold.

Prepare to apply eight vertical "valley-folds" and then unfold.