In order to express three colors and more colorful themes, we had to use two sheets of paper. So, how to make the three colors achieve a perfect penetration relationship with each other? This work is the most satisfying one among my many attempts, and it is also the most complicated one. The junction between the two sheets, accurate proportion control and ingenious interspersed relationship. It is hoped that it will open up a new path for the development of origami to expand the dimension of richer color expression.
