First, for a more casual New Year's, check out this Poppy Blossom Skirt via Bloomingdale's (pictured right). Pair it with a tight black long-sleeve shirt or perhaps a black turtleneck and black tights. Or perhaps this black scoop neck, short-sleeve ruffled cotton top made by the same designer (Leifsdottir) also via Bloomingdale's and also on sale (originally $98, on sale for $58.80). The skirt is 100% cotton. Originally $188, it is now $112.80.
For something slightly dressier, perhaps this Vince taffeta dirndl skirt also via Bloomingdale's (pictured left). I enjoy the classic a-line style paired with the pleats at the waist. 100% polyester; originally $235, now $141.
Third, is it appropriate to wear red for New Year's? If so, I love this bright red dress with a deep v-neck in the front and back from Diane von Furstenberg via Bloomingdale's (pictured right). Made from rayon, viscose, polyamide, and elastane, the dress will silhouette your body. The dress originally was $345, and it is now $207.
Finally, I'm not sure how New Year's appropriate this "icicle's melt" dress via Anthropologie is, but I really enjoy its intricate embroidery (pictured left). Perhaps it can be made work appropriate with a black or white cardigan or a jacket. The dress is 100% cotton with acetate lining. It is $388.