Glaminatrix Butterscotch is a warm yellow with a matte finish that is permanent and retails for $7.30. In comparison, Anastasia E4 (Norvina Vol. 3) is a warm yellow with a matte finish that is limited edition and retails for $12.00.
Anastasia E4 (Norvina Vol. 3) is 85% similar — it is darker, cooler.