If the highest score is 100, then the score of your calligraphy is 30---40 points. The reason for the low score is "insufficient skills."
If you think that your score is low, you will not be able to explain it to you at the moment. You will understand it when your aesthetics improves, or you can compare it with the posts of famous people in Chinese history. I feel that this score is very high. Of course, this requires you to be able to see the "good thing".
I will also write a few words, with a lower self-assessment score and a smile.