"Arctic slaves who do the heavy lifting across the doctor's network. Unresponsive while traveling between bunkers, but will relentlessly pursue anyone they encounter within the perimeter of a base, or during a kill cycle. Researchers under siege inevitably succumb to the cold as they breach holes into climate controlled habitats."

Here's where things took a turn for me: I started experimenting with painting in After Effects using RE:Vision RE:Fill to blend colors across transparent regions. I call it diffusion painting, it's like a way more flexible version of Illustrator's freeform gradients. The traditional airbrush look is a bit tacky, but I had a lot of fun with this technique. Original sketch here. Here's what it looks like without the filter (WARNING: MAGENTA)