How to make a 3D five-pointed origami paper star

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17.

Prepare to rotate the model by 180 degrees.

18.

Rotate the model by 180 degrees.

Now, the open side is at the top.

Prepare 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).