This is a project I made from last week. It's color scheme is full-on EGA (Enhanced Graphics Adapter, 16-Colors), and it was kinda rough, but at least it's done... Complete with the entire progress, and different colors & sizes to choose from.
Progress:
The main deign for this hatchback was completely modeled using Blender. Believe me, it took most of my project from here. The main model itself when rendered had lighting issues because it was modeled like crap, imo. After that, I traced the thing using Photoshop, and I mostly rely on pixel dithering patterns & non-anti-aliasing select tools to get the most accurate shading bits. The end result was pretty good.