What is the brushwork used in Qin Guan's "Magpie Bridge Immortal"?

The first film begins with two couplets, which not only describe the scenery of the Chinese Valentine's Day, but also reveal feelings in the scenery, implying separation and hatred. In three sentences, two stars meet across the Milky Way. The fourth and fifth sentences say that although the two stars only meet once in a year, it is better than countless dates in the world, which shows the poet's understanding of the meaning of love in this mythical story.