The coffeeshop action doesn't really do anything to change the skin tone. Try googling tutorials on CMYK values for newborn skin, that teach you how to change the skin tones using curves. And, as Ryan says, use a grey card as a starting point. Since I started doing this I no longer use any baby actions - all I do is correct skin tone, lighten the skin a little and clear up any blemishes. Much easier that way, and it also means you get a consistent look through your set of images.