blemish removal of minor acne, etc, shine reduction, glasses glare reduction, color enhancement, bringing a shadow around the edge to draw focus to the subject.
L3, more light skin smoothing (don't go by mom, she has impossibly great skin! Age 67!) Under eye darkness/wrinkles, lightened.
Above: L4 Light thinning demonstrated here with the chin, but can also be applied to arms, etc as requested.
We don't want to give you more than you want, so we're starting to let you choose your own level of retouching services.