Firstly, this guy started out as a copy of Mark Crilley's instructions... unfortunately somewhere I started to go wrong, and instead of starting again, I thought I'd capitalise on that mistake and make this guy my own. I like the worms coming out his mouth, but I really enjoy the way the mouth in general turned out. Heightened by the shape of his eyes, I think this guy can be seen as a possibly cocky and creepy guy.
During one of Mark Crilley's techniques for helping you draw hands I noticed the shape looked like a train coming towards you without the detail. This instantly threw me into an urge to draw exactly that, starting with the shape Mark Crilley had drawn. Here's the result, along with the peeping eyes of another drawing.
It was noted quite a lot in comments and other drawing videos I watched, that one thing you should really practise if you want to be good at drawing bodies etc for your manga, is realistic drawings. It's a lot easier to know how the shapes of arms, legs, etc should be drawn if you've gotten a hang of drawing the real life versions. So instantly, I found a picture of my partner, and began working on it. This was the result, which I'm extremely happy with.