The appearance of yellow hair hanging in ancient paintings is to show a kind of family happiness. On the one hand, it sends good wishes-family happiness; On the other hand, it shows peace and prosperity, no hunger, long live Dengfeng and national happiness.
If you are on the imperial map, you will see that the emperor is generally one size older than the waiter, which is the principle of "master and servant are small" that has always been advocated by Cory, a Chinese painting character.