I started up Warhammer 40k, when my wife bought me the Battle for Macragge starter set back when I graduated from college in 2008. My brother and I painted up the figures over a summer. I took the Tyranids and he took the Space Marines. The termagants were the first minatures that I ever painted. My Tyranids are Hive Fleet Occulus, obvious from the goggley eyes. My fluff was that nid spores are causing your dudes to trip all the balls.
Also, using your bathroom as a light box is a great poorhammer trick.