A quick fix to so-called open space concept

  I just don't like the open concept kitchens. So I used the bookshelves to separate the kitchen from the living room and the dining room. Then I painted murals on the backs of the bookshelves, so I'm not looking at ugly bookshelf backs.
First I put the shelves together and painted the early evening sky:

Then I separated them and painted some clouds:

I am thinking about painting some tree tops...