ColourPop Mycelium is a warm peach with a sparkle finish that is limited edition and retails for $6.00. In comparison, Sephora Twinkle Twinkle (362) is a warm peach with a metallic finish that is permanent and retails for $9.00.
Sephora Twinkle Twinkle (362) is 90% similar — it is more shimmery, darker.