The white table cloth with the purple tulle strip down the middle. The center pieces on this table are too much. Go with a simple jar with purple glass beads in the bottom with a purple ribbon around the top and babies breath and a butterfly in each jar.
Find fabric to use as table clothes. A sweetheart table is the main place at your wedding reception and it should excite and highlight your style and theme. Make an accent on your sweetheart table with a sequin tablecloth, lots of flowers and rhinestones.