Here's this week's Creature of the Week. The Giant Amphibious War Machine. The concept behind the theme was to create a freshwater, amphibious (as in land and water rather than the category defining frogs, toads, salamanders, newts and some other random creatures) creature that would be capable of defending bodies of water from others in the far future where water is less plentiful and more hoarded.
My concept in particular was to create a creature which would intake the water and would use thermal pockets within its body to superheat the water and spray it back out in the form of steam. Anyway, here's the drawing...