Erol Otus is the game artist that I talk up the most around these parts. But if there's one guy whose drawing style I could personally emulate, that would be Tom Wham.
I am seriously considering a con game based upon Search for the Emperor's Treasure. Turb here would be one of the pre-gens.
See how the cyclops is looking down at those two little dots to the right of his foot? Imagine those dots are your PC party.