I'm a firm believer in that if something doesn't have a purpose it shouldn't have a place. It seems like you don't really need this shelf so I would get rid of it. Having furniture for the sake of having furniture is how homes become cluttered.

The piece seems crammed in the corner between the buffet and the curtains. I also don't think that the buffet and the rack complement each other.

i used my seldom used Lenox serving pieces. Salt and pepper on smaller shelf, gravy boat on next and soup tourine in bottom. Another time, I displayed hand thrown pottery. One unique piece per open shelf with the same color tones.