What's the level of calligraphy in Huang Ruozhou?

Huang Lao has made great contributions to the rapid writing of Chinese characters, which is enough. In order to write quickly and beautifully, there is nothing wrong with writing his words temporarily. Hard pen calligraphy is different from brush calligraphy, because hard pen calligraphy still needs practical value, while brush calligraphy does not. From the initial "stepping stone" to the present pure art, it is no longer a good word in the general sense.