Why is the word too small to look good? I feel that I can't do it, especially writing a composition with such a small grid.

How to read your own handwriting is also a lot of effort. There is nothing wrong with "showing off" Just don't be a good boy, or it will be weird. Actually, there are some pens and pens, and the pens are a little casual. If measured by professional calligraphy, there is still a long way to go, but in normal times, someone should praise them. To reach the professional level, we need to strengthen the basic skills of regular script.