Bite Beauty Pastille is a neutral pink with a satin finish that is discontinued and retails for $24.00. In comparison, YSL Arlene's Nude (121) is a neutral mauve with a satin finish that is limited edition and retails for $38.00.
YSL Arlene's Nude (121) is 80% similar — it is less shimmery, warmer, glossier.