This is an outfit that I wore to a new year's eve party a couple years ago (that I am also considering recycling this year). I like it because its different and its a little Christmassy without being covered in reindeer and candy canes. I wore this shirt dress with lace details from Urban Outfitters with a back bandeau to keep the girls covered and black liquid leggings setting off the contrast between the hardness of the leggings and the softness of the lace. Some may find liquid leggings to be a bit tacky but I think that you should just go for it if you feel as if you can pull them off (literally and figuratively). It is very important to take into consideration the durability of an outfit throughout the evening. For example, this dress zips from top to bottom at the back and somebody at the party somehow accidentally unzipped the entire thing.
I accessorized very simply with a vintage watch and black patten-leather peep-toe pumps. You could also switch up the shoes for some wedge booties that are very on trend this season. It is always interesting to mix vintage with new and high end with low end.