Pat McGrath Bronze Nebula is a warm copper with a metallic finish that is limited edition and retails for $25.00. In comparison, Natasha Denona True Copper (305M) is a warm copper with a metallic finish that is permanent in palette and retails for $29.00.
Natasha Denona True Copper (305M) is 90% similar — it is more shimmery, darker, cooler.