Why does my handwriting look good upside down?

Your question is very deep, and few people know the answer, but when I was a child studying art, a teacher pointed it out to me. I once asked him why some paintings don't look good in the mirror. The teacher said that everything that is beautiful is proportional, and things that are really perfect, whether positive or negative, are beautiful. If a person's face looks good, it won't be ugly after being photographed. That means that the proportion of this person is very long. If there is a big difference between a person's pros and cons, it is because his proportion is not good, your handwriting is the same, the style of the pen is problematic, and the ratio between pens is problematic, so it will be very comfortable from only one angle. If you look at the handwriting of some great calligraphers, no matter how you turn it, it won't be ugly. The ratio is very good. What you need to practice now is the proportion of words and the control of strokes. It will be helpful to read more good copybooks. Remember, the key is proportion. Even if you don't agree with my answer, you should remember this. If you want to improve in the future, you must pay attention to the proportion. Proportion is the key to the success of the work.