Underdressed is a darkened brown with a hint of plum and gold and copper sparkle/shimmer. This is the sparkliest of the four, and I think it’s the prettiest on. It’s semi-sheer with lots of shimmer, and the base color darkens the natural lip color but doesn’t cover it. This gloss lasted just over four hours on me when I tested it for wear. Dior Ambre Lumiere has much finer shimmer but is close. MAC Spree is cooler-toned. Guerlain La Petite Robe Noir is sheerer, less brown.