Bedroom passthrough

This is bedroom number #2 in the house.  My favorite feature is the window to bedroom #3. When bedroom #3 was added to the rear of the house, they moved the outside window from #2, where it was no longer needed, to #3, where it has a fine view of the back yard.  That makes sense. However, instead of closing off the old window hole, someone thought it was a better idea to put adjustable shelves in the gap.  That way, the occupants of 2 different bedrooms can enjoy the same knick-knacks.  Maybe they won a doubles tournament together and this way they could share the trophy.  Nice paint job, too.