Maybelline Violet Vixen is a warm purple with a natural finish that is discontinued and retails for $7.49. In comparison, Obsessive Compulsive Cosmetics Alt-Girl is a warm purple with a pearl finish that is discontinued and retails for $17.00.
Obsessive Compulsive Cosmetics Alt-Girl is 85% similar — it is more shimmery, lighter, cooler, glossier.