Texture Painting and different shiny /wet looking material.
This took a lot of iterations to get there.

New Sculpt, played around with the depth of field (DOF)
settings. I like the result. :)

T-Rex

Random Guy

Nashorn

Looks a bit cartoonish.

The Beast

Beard

This started as a 30 Min. quick sculpt. I tweaked it
some more for detail and character.

Undead & Generic Mech