Small, shiny earrings to draw the eye back to your face, and not compete. Shoes like the model is wearing seem good. Light, open sandals, because the dress is light and open.
I'de suggest for earrings that you either wear chandelier style earrings or a pair of giant studs. If ya want flats, I'de suggest a pale colour or pastel. If you want heels, I'de say a pair of cute little platforms that are also pale or pastel coloured.