The earrings are beautiful and suit her long neck and bare shoulders. They meld nicely with the hair piece. The two angles allow a view of her hair style, somewhat curly and not as long but still very nice.
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How To Make A Floral Cake Topper with Artificial Flowers
I have also seen similar centerpieces that use epsom salts instead of sugar. You could also sprinkle a mix of pearls/gems. Sand (or sugar), faux pearls, a 3 candle. An easy DIY wedding centerpiece idea.