These two leaves look the same as those in Four leaves. However, here the pleats in each are parallel to the orientation of the folded leaf, while originally they were perpendicular to it. The center of the sheet is where the two leaves meet, and the twist does two things: it changes the color by flipping the visible side of the paper, and it shapes the leaves by pressing all the pleats tightly together. Pins (nails) are critical in shaping this.