More of a formal New Years party? Wear a dress that already has the big details so you don't need to accessorize too much: gold and black can never go wrong. What is great though is that the detail is on the top and not on the hips so it won't make them look wider than their normal state. Perfect NYE ready to wear dress for the occasion. Personally I would wear opaque tights to make it really elegant, but you can wear semi-opaque ones to be elegant and sexy as well.