After 3 solid days of working on this guy he is finally done. He was the quickest to paint of the 3 mega monsters coming in at about 10-12 hours. I can't believe I have cut the painting time in half on these guys from my first Trygon. To be fair though I didnt go as detailed on the brown carapace on this guy as I did the Trygon.
After getting all that I have done over the last 3 weeks (10 Hormagaunts, 2 Venomthropes, 2 Tyrant Guard, a Swarmlord and this Mawloc) I am getting very close to being totally done. All I have left to paint is one more Hive Guard, a Tervigon *shudder* and the "extra" termagants that the Tervigon creates, then I am 100% finished painting Tyranids and I will start something new. On a side note I added everything up that I have fully painted and it comes out to a very respectable 3500pts before upgrades. Next up is FOR SURE THIS TIME! the Tervigon as I have procrastinated by painting pretty much everything ELSE in the entire army before it lol.