Natasha Denona Cyclone (138DC) is a warm copper with a metallic finish that is discontinued and retails for $29.00. In comparison, ColourPop Whistlin' Pixie is a warm copper with a sparkle finish that is permanent and retails for $9.00.
ColourPop Whistlin' Pixie is 90% similar — it is more shimmery, darker, cooler.