Quote from Wookieepedia:
The Kumumgah were a technologically advanced race that lived on Tatooine who defied the Infinite Empire. The Rakata punished this by bombarding the surface of the once lush world of Tatooine into little more than fused glass. This eventually crumbled and became desert sand. The extreme climate change split the Kumumgah into two races: the Ghorfas (who evolved into the Sand People), and the Jawas.

I am looking for someone who would like to accept the challenge of trying to envision the common progenitor of the Jawa and Ghorfa race. There is no clue how this progenitor may look like but I think it may resemble features of both races, also we really don't know how Ghorfa or Jawas look like behind those masks. A possible depiction of an unmasked Tusken is found here: http://starwars.wikia.com/wiki/File:Grave_Tusken.jpeg or here http://starwars.wikia.com/wiki/File:Republic_62_03.jpg
Jawas have never been depicted without their masks and goggles, but it is said they are rodent-like.
The picture I am looking for should show a Kumumgah warrior(unmasked of course) in some sort of archaic battle gear and with an archaic beam-weapon.
Thanks