This character has no official visual representation whatsoever — yet, at least.
Rann of Ijurn is a guy. Presumably, he's from Ijurn.
"Megatron, Starscream, Shockwave...always focused on pettiness, never looking at the bigger picture. Even Rann of Ijurn had more vision, more knowledge of the universe around him...until we crushed him and conquered his world, of course."
Rann of Ijurn was one of the numerous "foes and would-be conquerors" encountered by Skystalker and Skyhopper during their long sojourn in space. They defeated him, and subjugated his planet. Much later, Skystalker compared him favorably to the Decepticon leadership. Recipe for Hate