So I have been working on someone else's abandoned project and decided to finally replace old and obviously ripped and terribly edited icons. I have made one direction already. Here's the result (it's a little distorted):

If you want to have a closer look, you can download it here.
First of all, I blame my decision to start learning to draw on paper, as now I am no longer content these chibi-like, out of proportion bases. I realize this isn't very proportional, either. But I think there is a problem somewhere else.
I tried to make it 3/4 angle, but I believe I got carried away and drawn the body at slightly different angle than the head. I don't want to start remaking it before someone more experienced can have a look because the file is named "Human4.dmi"...
I realize he doesn't have any eyes. There's a reason for that - players characters and other people who should be taken seriously will have "glowing eyes" while regular folk will blend with the surroundings. That is also a reason why I have chosen colours which won't stand out. I also tried to make the base look less like professional body-builder, but also not a limp kid. This made me unable to do any outline curves on arms and legs without making it look weird. Also, walking might look too unnatural, but I find making huge waist rotation and flapping your limbs around even less natural. I tried to base it on the way I walk, but I might be just a white crow when it comes to walking.
If you don't feel like reading, please skip what I wrote - I don't know anything about art, so it's mostly nonsense.
Thanks for all advice and criticism.