The only shortcoming of this room is that the sunlight reflection on the glass floor is too bright.
Because there is no daylight in the Grid, but there is daytime in my home.
A dark curtain is a must.
The wall and the ceiling costs about 8000 RMB (1300 USD).
The glass floor costs about 5000 RMB (800 USD).
The wardrobe is about 5000 RMB . And it costs another 5000 RMB to make the wardrobe and part of the wall looks like the Grid dark rock.
The whole room costs about 30000 RMB (5000 USD) with some furniture.