The emphasis on three beauties in calligraphy mainly refers to the beauty of lines, structures and rules. Chinese characters are the carrier of calligraphy, so there is a certain relationship between Chinese characters and calligraphy. Calligraphy can be called Chinese characters, but Chinese characters are not necessarily called calligraphy. There are many things in calligraphy works. It also includes, for example, inscriptions, overall layout, the relationship between yin and yang, etc., in which Confucianism and Taoism are also integrated into calligraphy art.
Personally, I think we should focus on the aesthetics of calligraphy as a whole, first look at the whole and see if the overall layout is more appropriate. We should also see the structure of characters and the use of pens by individual characters. Of course, cursive script should also pay attention to charm and style. The structure in regular script will be more rigorous, and it may be more inclined to the structure of characters, which is what we need to lay a good foundation when we first start learning books.