I don’t know if there will be much difference if you don’t, sorry!
Skins (should be) are anatomically correct and range from Teen to Elder. These are all indicated by a blue preview. The Asian versions (with a softer eyelid) come in Caramel 1, Marshmallow 3, and Vanilla 3, as well as the EA ramps. They are clearly labelled, and the font colour is the shade of the preview in the CAS dropdown ( EA is indicated by green), so they are all super easy to pick and choose.
You can have all, you can have one, and you can also have just the EA ramps. Here is a preview (dumb names based on sugary treats is a tradition okay): There are a total of 12 tones, split up into four different packs. A new skin!! Similar to Cake Face, but a little smoother and more defined eyelids.