Alien Fetus

This alien fetus will continue to grow within the womb-chamber until its claws and muscles are developed enough to tear out of the tough transparent membrane encasing it. After said time it will begin its quest for the utter destruction of the human race, as do most aliens. It will most likely latch onto some passing spaceship and kill most of the crew, one by one. Then when all seems lost it will fall for some half-baked plan cooked up by the "heroes," and most likely be smashed, burned, shot, frozen, pulped, juiced, tossed out into a vaccum and/or irradiated.

Fast job, about 2.5 hours on a Wacom Tablet in Photoshop Elements 2.0