01.
Let's start with the front side of pentagon facing up.
Prepare to convert all the creases into either valley-folded or mountain-folded ones as shown on the left crease pattern (CP).
02.
Complete the conversion of the CP given on the step #1.
Prepare to press the model to make it flat by following the arrows shown on the left picture.
Gaily bedight, A gallant knight, In sunshine and in shadow, Had journeyed long, Singing a song, In search of Eldorado. But he grew old- This knight so bold- And o'er his heart a shadow Fell as he found No spot of ground That looked like Eldorado. And, as his strength Failed him at length, He met a pilgrim shadow- "Shadow," said he, "Where can it be- This land of Eldorado?" "Over the Mountains Of the Moon, Down the Valley of the Shadow, Ride, boldly ride," The shade replied- "If you seek for Eldorado!"