What is this hard-pen calligraphy font?

Official script is indeed easier to practice than regular script, with stable structure, easy to master in white and simple strokes. The styles of your paintings all belong to the simple category of Gu Zhuo, which is different from the elegant and beautiful category. It's completely modern. The first picture is even white, with a little taste of Korean harmony, and some words have some characteristics of Weibei. The strokes are square, the structure of the second picture is bold, the strokes are free and casual, and some even have a little taste of running script. If a girl wants to practice official script, she should practice some beautiful things and imitate Cao Quanbei, so that she can get the most famous official script in modern Liu Bingsen and buy a copy of his copybook. Features of official script: the silkworm head is swallowtail, horizontal and vertical, the silkworm has no two colors, and the swallows do not fly in pairs.