Mary 580_pp by gearoidmuar
This is a piece of software I downloaded last year (on Mac) and it's used for post-precessing portraits.
If you let it it will change the shape of the face, widen the gaze etc., but I only use it for emphasising the eyes (it makes them sparkle somehow) and smoothening the skin. I used it on about 3 photos of a wedding I shot last October.
It's cheap, and if you're into Portraiture, it's worth it.
This example is probably slightly overdone. Mary is 61 and her two most notable features are her skin and eyes. She had sensational skin when she was young and never wore makeup on it.