A new CG, this time with Zim glaring and Pastolio, his hyponotic zit (well, it was just a big alien zit, but GIR drew a hypnotic face on it with Sharpie!)
I did this by drawing a picture on paper, then scanning it, then using beizer curve with the pen tool and tracing it over with big lines, then colouring it.
The reference I used was...