I only focused on th face lips and ears the line on the head is from a diff setting for that surface.  SSS is a subtle change, only the way light reacts to the surface,  I used it in both these images, but the mats add a little more. You wont get that flashlight in your mouth effect, but with some simple changes to your existing text(depending on you image editing skills)...SSS gives a light effect to the surface but by using a mat in the translucent channel you can simulate what sss cant. Maybe blood, blood vessels, alien parasites, i dont know.  I think it a neat way of being able to blend two textures.  Trans channel could do tattooes. Freckles could be added to any text and could be tweaked in poser or even animated i guess.  i guess this isnt new to most but hey im coming from P5.

ok time to sleep