ColourPop Tatooine Glimmer is a warm brown with a metallic finish that is limited edition and retails for $4.50. In comparison, Natasha Denona Palladium (316M) is a warm brown with a metallic finish that is permanent in palette and retails for $29.00.
Natasha Denona Palladium (316M) is 95% similar — it is more shimmery, lighter, warmer.