Of all the beautiful polishes that I own Etude House PP904 Mystic Purple, this is in a league of its own. It's just so unique! It's not a duochrome, but it looks very different depending on the light. It can look from purplish-grey, to purple, purple with bronze sheen and when the light hit it directly it simply glows. The base colour is a cool purplish grey with a lot of pink and gold micro shimmer which combine to give it the bronzy hue, but at the same time you can see both the gold and the pink sheen. Honestly, I just wish I could capture it with my camera, but I doubt any camera can capture its many 'faces'! It only takes 2 coats to make it opaque, it's smooth and it has s small, flat, excellent brush!