Been doing alot of Pixel work lately (I've uploaded a handful, but there's loads I'm not happy with), and to be honest, I'm losing interest fast, so I'm taking a break.

So here's the deal, every once and while I pick up a pad, a pencil and maybe a pen, and get doodling and sketching. Tonight, I was wondering what makes new retro-styled sketches... well, new retro styled :P

I know the obvious things, like the heavy use of geometric shapes in creating form, as well as the thick outline around the main parts, but can anyone give me any more tips or links etc?

Thanks very much,
Zak Aston
(curious amateur artist)