First off, are you sure you have enough pillows? I believe that they are mating while you are out of the room. The recessed fixtures in the soffit are too close; they just create hot spots on the wall. The most effective way to light the shelves is to install a run of linear lighting below each shelf. For the uppermost shelves, I would also install one on top to uplight what is displayed. A warm-colored LED (2400K to 2700K) in an aluminum channel with a bronze or black finish would virtually disappear. Two good examples to look at that position the LEDs at a 45-degree angle are the Elite Series by Phantom Lighting and the CS017 channel with the VWW3528 LED strip by Environmental Lights. Their channel comes in a white paintable finish.