If your finished pictures will be comic-book style, do you need photo-realistic skins?

If not, making your own is a consideration.  When I'm doing simple pictures that don't require photo-realistic detail, I make my own skins with the help of some merchant resources I bought in the Marketplace here.  (Photoshop brushes for body hair, freckles, various skin features; makeup overlay for V3; body hair guide for M3.)

Going that route will take a bit of extra time, it will have a little bit of expense depending on what merchant resources you'd buy to help you.  But it will allow you to do some of your own customization, and perhaps more variety.