Both Natalie and Ni Ni wore the same dress by Lanvin, but different colours. Natalie wore hers pink with a little purse and diamond bracelet. Also she did her hair simple and it's looks nice. Ni Ni wore hers black and paired with gold bracelet, and I love how she did her hair, it's simple but also very classy. I think they both look nice, the dress is really cute as well but Ni Ni wore better to me.
Picture is not mine, from the source.