He’s a battered humanoid droid, dirty and discolored, his chassis heavily cracked and sun-blasted. He has bug-eyes and an off-kilter, duck-like face. Just envision the isometric opposite of C-3PO’s fastidious and anal retentive gold chrome chassis.

CZ-4 was a communications/business droid exposed to the harsh Tatooine elements and left to wander in a state of disorientation.