Natasha Denona Tiger Lily is a cool blue with a metallic finish that is limited edition and retails for $29.00. In comparison, Natasha Denona Blue Spruce (02M) is a cool blue with a pearl finish that is permanent in palette and retails for $29.00.
Natasha Denona Blue Spruce (02M) is 80% similar — it is less shimmery, darker.