How to draw a mirror in a four-grid cartoon

Compared with a long story, it is much easier to draw a four-story story, because the story content of the four-story story is relatively simple, and four rectangles or squares can be drawn to frame the picture content. There are certain procedures for drawing four squares, and the development of the story should start, continue, turn and merge (the screen size can change according to the development of the story). Personally, although the four grids are relatively simple, the picture content still needs to have a certain depth (there are more and more funny and spoof pictures now). The above is my personal opinion, I hope to adopt it and wish you success!