The author of the calligraphy work writing the word Danqing in the Tang Dynasty was

The poem says:

Fufeng’s powerful men are amazing in the world.

With their will and energy, they can move mountains.

…………

These two lines of poems by Li Taibai are familiar to everyone in Fufeng, because he wrote them at the entrance of Qixinghe National Wetland Park, the most prominent place in Fufeng County. The person who wrote the elixir was none other than Mr. Dou Jianmin.

I met Mr. Dou Jianmin at a pen meeting held by the Fufeng Poetry and Couplets Society five or six years ago. After introducing themselves to each other and exchanging a few pleasantries, I was deeply impressed. Later, I slowly got to know more about Mr. Dou Jianmin: he was from Fufeng, Shaanxi, and his name was Hu Xiaoxuan. University education, senior economist, special researcher of the Chinese Academy of Management Sciences. He is currently a director of the Chinese Calligraphers and Painters Association, a director of the Chinese Art Masters Association, a director of the Chinese Dou History and Culture Research Association, a member of the Shaanxi Provincial Calligraphers Association, a researcher of the Provincial Academy of Calligraphy and Painting, the deputy director of the Shaanxi People's Calligraphy and Painting Academy, the Baoji Calligraphers Association, calligraphers and painters He is a member of the Association, the Poetry and Couplet Society, the vice president of the Famen Temple Calligraphy and Painting Academy, the vice president of the Fufeng County Poetry and Couplet Society, and the president of the Fufeng County Dou Family History and Culture Research Association. He formerly served as deputy secretary of the Party Committee of Fufeng County Credit Union, deputy director of the Union, and chairman of the labor union. In recent years, I have participated in calligraphy competitions at or above the provincial level and won more than 50 awards, including 13 gold medals, 3 silver medals, 2 bronze medals, and more than 20 excellence awards. In the past few years, he has written more than 150 inscriptions, book titles, and stone inscriptions for various books, periodicals, and magazines. In April 2012, his calligraphy works and calligraphy papers were published in the special page of the national "Calligraphy Newspaper". In July of the same year, a personal calligraphy exhibition was successfully held in Xifu Ancient Town, with more than 70 works on display, which were well received by everyone; in July 2015, I In the 39th issue of the "Lecture Hall" column of Fufeng TV Station, a calligraphy theory lecture was given, which lasted for one and a half hours. (Can be found on Tudou.com). The personal collection of calligraphy works "Mohua Hanyun" published in 2012 has been printed in four editions and 13,000 copies in the past five years. It has been donated and sold to both inside and outside the province, with great influence and good results. He served as a calligraphy teacher at Famen Temple Buddhist College for two consecutive years in 2017 and 2018, and was highly praised by teachers and students of the college.

To describe his calligraphy works as "moving clouds and flowing water, flying dragons and phoenixes, vigorous and powerful..." is obviously a bit weak. You might as well go into his studio and have a look: