Fold the origami inward and press the center square down at the same time. Fold the paper like this, the top and bottom paper must be folded in the opposite direction. Then turn the bottom of the origami out and you can see the picture above. Note that it looks like a windmill after folding. Press the red line to turn the origami down. Fold the origami in half and then turn it back as shown by the red line.
After all the four petals are folded, gently pull out the four petals to expose the flower core, and gently press the edge of the petals to make the outer ends of the petals produce a certain curvature, as if they were real petals. In order to make the flowers look more beautiful, you can try different papers, because too thick or too thin paper will affect the folded flowers. The last step of flowering is to decorate the petals properly to make them look more natural and beautiful.
The first thing to do is to cut out a piece of crepe paper 9 cm long. Fold the cut crepe paper in half along the grain, draw half a petal and cut it with scissors. Open the paper after cutting it. Put a pencil at the tip of the petal (as long as it is as thick as the top and bottom) and roll the petal on the pencil. Then push the desktop hard and squeeze it hard with your thumb and forefinger. (two or three squeezes).
Squeeze it and take it off the pencil. Open the squeezed petals, the back of the petals, and arrange them side by side in the center with two thumbs. Then the two thumbs are forced to the middle to open the petals. Be careful to use less force. Then separate the petals one by one, just after cutting the petals, roll up the remaining paper to make a flower heart. Then pick up a petal, put the flower heart in the middle of the petal and wrap the flower heart with the petal.