That eyebrow shape is called "Far Mountain Dai"
According to the "Book of Han" records, it was an eyebrow shape created by the beauty Zhao Hede, the sister of Zhao Feiyan, Emperor Cheng of the Han Dynasty. Her eyebrows are like distant mountains. Han Cui, because of its beauty, people all over the world are trying to imitate it. Han Lingxuan's "Feiyan Gaiden": "The female brother entered the palace with virtue, and was given the thin eyebrows, named Yuanshan Dai."
Yuanshan Dai is a method of painting eyebrows that are light, distant, and slender. Just like the distant mountains behind a pool of autumn water in an ink painting. "Dai" is the earliest thrush material. Because it is a black mineral, it is also called "Shidai". When the ancients used it to draw eyebrows, they had to grind Shidai on a stone inkstone to make it into powder, and then add water to mix it before use.
Yuanshan eyebrows are deeply loved by women because of their long, slender and light color, which make the face look delicate and elegant.
Because Empress Chunyuan likes Yuanshan Dai the most, the emperor likes to see Huan Huan painting Yuanshan Dai