When you open the door, you can see the picture on Golden Avenue, OK?

All right. Hanging pictures is a kind of decoration, which is arranged to increase the aesthetic level of children in the room. It doesn't mean it's bad to open the door and see that it was specially installed by the owner of the room. "Golden Avenue" refers to a painting of the Golden Avenue paved with gold bricks, in order to make people "step on gold" and get a "good color".