Gan Long's calligraphy has certain attainments, but after reading it, many people find that his calligraphy is far less than Yongzheng's. No matter from the brushwork or the layout of the word stand, there is a world of difference.
Gan Long read a lot of poetry books since childhood, was enthusiastic about calligraphy and painting, reviewed ancient and modern articles, advocated Confucianism, and copied and studied some handed down calligraphy and painting. The conditions for him to learn calligraphy and painting can be said to be unique. His hobby and advocacy of calligraphy are better than Kangxi and Yongzheng, but his calligraphy attainments are lower than Kangxi and Yongzheng, especially with Yongzheng.