Result of finally watching Repo! The Genetic Opera (which is a very, very strange movie).
So if you can imagine Zim performing a musical number as he prepares to remove his victim's organs, you're all set to go. XD
Meh, I spent about seven hours on this and there's still mistakes I couldn't fix (I don't know if you can tell, but the binds on Dib are slightly translucent lol.)
Well at least the cel-shading is somewhat satisfactory this time. XDArtwork (c) Me
Invader Zim (c) Viacom/Jhonen Vasquez
Repo! The Genetic Opera (c) Darren Lynn Bousman
Probably a reference to the Dark Harvest episode as well, but with more blood.
EDIT: I forgot Zim's PAK again. ERMAGHERD! HE HAS TEN MINUTES TO LIVE, BUT THIS PICTURE'S BEEN UP FOR FOUR HOURS! IT DEFIES ALL CARTOON LOGIC! NOW I'M QUESTIONING EVERYTHING! GAAAAAAAAAAGHHHH!