The two wing chairs and two ottomans got new white denim slipcovers.
Back view with covered buttons. In this case, buttons were not needed to get the cover on and off, so they are just for looks, they they do function. Over time, though, fabric, and especially denim, can continue to shrink. If this happens, the covers will be easier to remove and put back on.
It's a little hard to tell, but the skirts are not to the floor. They are just long enough to cover the upholstery underneath. It is a way to save on fabric when you are running short. Plus, it gives a lighter feel to the piece and to the room.