Fold the stitched square pairs into triangles.
Draw a square with the longest side of the triangle as the base, so that it is just a small square.
After painting, spread it all out, fold one corner down into a triangle, and sew the longest side with thread.
Diagonal seams are stitched in the same way.
After sewing, fold the trapezoidal pair into a triangle and fold it in half along the right side of the small square drawn before to become a diamond. The left side also becomes a diamond in the same way.
Then fold the top corner of the diamond down by three quarters, and do the same on the left side.
Then sew a button on each corner, and sew a the cloth flower in the center of the square to fix this side.
Turn the square to the other side, fold the left and right corners in half to the middle, and sew small flowers in the middle.
Finally, tie ropes on the front and back respectively, so that a cloth bag is finished.