I know you requested MAC-recs, however I have read that she often uses Laura Mercier products, so most likely these are the best color matches:
LM Long Wear Lip Pencil: Terra Cotta (neutral beige peach)--if you notice, she has a warmer lipliner for this otherwise 'cool' lip, most likely to enhance her lip shape. On the LM website, she has used this pencil on MC before for magazine covers. MC has also said that she uses MAC 'Spice' Lip Pencil, but for this look the liner doesn't look as orange/warm as Spice.
LM Creme Lipstick: Pink Champagne (cool rose pink)
LM Lip Glace: Violet (soft mauve rose)
LM Cheek Colour: Rose Bloom (medium rose)
LM Eye Colour Matte: Cashmere (medium pink brown)
This will hopefully help you achieve the look without having to go through too many MAC dupes. LM costs more, but after looking at the LM website more, these colors look spot-on.