This picture shows a foundation of colored fabric with a handled tray above, which then
has a painted tray atop that and is completed by the vase arrangement.
Note the ottomans forming a table surface, topped by a scarf, which is then topped by
a tray, then a bowl, and then the decorative balls.
This old-fashioned hatbox is being used as a riser to display this floral arrangement.
Here's another use of a hatbox - this time in a dining room.
Corralling a collection on a tray, as discussed in the book
I was quite intrigued by the stacked look of the items on the right.