Pen and paper.

1, prepare a pen and a square piece of paper. Just use plain paper when practicing.

2. Then fold the paper diagonally once.

3. Next, fold the left and right corners in half.

4. Then fold it in half for the third time.

5. Put the whole corner of the triangle down and draw a pattern.

6. We need to cut off the shadows.

7. Let's talk about the hollowing out of the petals on the left. Goodbye, leaves on the right.

8, and then cut it all.

9, and then slowly expand once;

10, extended once.

1 1, for the last time, a beautiful flower window is displayed in front of you. This simple and beautiful window decoration is completed.