Here is a pic of the original figure(courtesy Rebelscum.com):
Please take a moment and compare my modified/repainted Malgus to Hasbro's. The figure was a great try, and with some added work, I turned him into something much, much better! Hasbro did a great job bringing this character into toy form, it just needed to be tweaked a bit to bring out its potential.
Darth Bane was based off this art and statue. I dont know what comic it might be from, just a very cool looking version of this Sith Lord.
Concept Cyborg Darth Maul:
Super Articulated Darth Nihilus: