What are the calligraphy characteristics and characteristics of the upper-level posts?

Shangjietie is a cursive four-character poem with five elements and 25 words in total. Calligraphy is vigorous and powerful, and it is out of control. His brushwork is luxurious, slightly unpretentious and vigorous, wandering outside materialization. There is a praise of "dust in the mountains and strange things outside".

The balcony post above

At the beginning of this post, Emperor Qianlong wrote "Violet Han Yi" in regular script, and Song Huizong wrote "Don Li Taibai ascended the order" in fine gold. Later, there were inscriptions and comments by,, Yan, Du Ben, Ou Yangxun,, and so on.