MAC Water Willow is a very cool-toned, very dark green with a pearl finish. It is a limited edition eyeliner that retails for $16.00 and contains 0.01 oz.
Water Willow ($16.00 for 0.01 oz.) is described as a "deep khaki green." It's a dark, forest green with cool undertones and a pearly sheen. It had good color payoff in a single stroke, and the color itself stayed on well for eight hours before migrating slightly. MAC Black Ivy (LE, $16.00) is less shimmery. Urban Decay Invasion (P, $19.00) is darker. Make Up For Ever #4K (P, $17.00) is brighter, lighter. See comparison swatches / view dupes.