ColourPop Special Delivery is a neutral green with a sparkle finish that is permanent and retails for $6.00. In comparison, Natasha Denona Marlin (457M) is a cool green with a metallic finish that is permanent in palette and retails for $29.00.
Natasha Denona Marlin (457M) is 90% similar — it is more shimmery, lighter, cooler.