This sketch is an evolution of Airhead within Bobby's style, which began with:
Airhead is a natural male model personality, and it is even harder to escape the tag when he his costume was designed by an excellent tailor in Russia. This image, and the one mentioned above, took considerable effort to produce - not the least being the wait for Airhead to stop grinning like an idiot.
Thanks Bobby, I really appreciate this! It has opened my eyes to more of Airhead's potential (and it's awesome drawing too!).