3. Cut along one line. Move the papers so that the outsides come together and tape.
4. Cut along the other line. Move the papers so that the outsides come together and tape. Essentially you are cutting and rotating the image so that the original corners are in the middle and the center of the original picture make up the new corners.
This is Henry's picture of Batman, a lion, two lightbulbs and a sun. He then added an elephant in the middle of the picture.