It is divided into two steps:
The desk in the school dormitory is a rustic log color, but I personally like the simple neutral wind. I bought a gray wallpaper online and changed the whole table to a different color.
In order to neutralize the gray, it is not too dull.
I bought some green plants to put on the partition of the desk and some murals to hang on the wall.
On the bed, I just bought some wallpaper, changed the color of the white wall and replaced it with a brand-new four-piece suit with neutral style.