Googling a bit will show that I am not the first person to turn this Reaper figure into a Dark Sun Mul Gladiator - but I would like to state that I had the idea before I saw those previous versions.
The Dark Sun campaign world included a wonderful race that rarely appears in fantasy or gaming literature - the half dwarf. It combines the best of both worlds - as tall as a human, but as stocky as a dwarf. Sterile and hairless, "muls" are favored as gladiators in the arenas of Athas' city states.
The figure below is a Reaper Bones barbarian whose conversion to a Mul requires only a specific skin tone and a bone blade in place of metal.