Emirikol is the much-beloved creation of illustrator David Trampier. Trampier, affectionately known as 'Tramp' by many of the older roleplayers, is an illustrator who, along with Erol Otus and David Sutherland, defined the look of early Dungeons and Dragons. Here is Tramp's Emirikol the Chaotic as he appears on page 193 of the 1979 AD&D Dungeon Masters Guide.
Tramp was well-known for utilizing "implied narrative" in his illustrations. He captures a moment in a story, already in progress, and he leaves it up to us, the viewers, to piece the rest of the story together. The subjects in his illustrations are rarely inert: even when pausing, they have a certain energy or tension to them. Look at any of his illustrations and you will see what I mean: even his crouching lizardman, from the Monster Manual, looks ready to spring to the attack.