Then open up the card. Next, the ends are folded down and under. (pic. 2 above). Then pinch the center fold together while bending the ends up (pic. 3 above). It may take a few tries to get it to fold properly, but once you get it, the card will refold easily.
Attach the small overlays on the ends and then put the faces on. Glue the trees on the big square overlays. They hang over a little at the top, That is ok, The center diamonds are glued at the bottom only to the base card and to each other at the top on opposite sides of the card.
And your Halloween Double Diamond Fold Card is done. And it is reversible and stands on its own! Put it in an A6 envelope for mailing or make your own custom envelope.