But it was during this time that Todd began to take a serious interest in representing the human figure realistically. From the first issue, hands always had fingers (5 of them), but at first arms and legs and torsos and heads were just generic approximations thereof, drawn from assumption, not reference. Then he began to render - tentatively at first - the bumps and bulges of human musculature. He'd stopped dating the issues, so it's difficult to gauge exactly how quickly it happened, but in pretty short order, his figures became remarkably more realistic. Underneath the spandex could be perceived deltoids, pectorals, sternomastoids, patellas, biceps, abdominals... and even penises. The growing body awareness of puberty clearly played a role in this. The poses became more inventive, and included some decent foreshortening. He even took a "comic book art" class, which increased his focus on the quality of the craft. He also began to experiment with color pencils for more subtle effects, such as skin tones.