MAC One to Watch is a warm brown with a satin finish that is discontinued and retails for $21.00. In comparison, Wet 'n' Wild To Muse and Carouse #2 is a warm brown with a matte finish that is discontinued and retails for $2.29.
Wet 'n' Wild To Muse and Carouse #2 is 90% similar — it is less shimmery, darker.