Well the face needs to be highlighted and desaturated more so that it appears more orcish, could also use some teeth.
The armor has much to much contrast. There is a minor black hole in every crease of his armor
Nice layout though, and his shorts look good.
A good first draft
That looks REALLY cool! Maybe think of changing the name though, Orc Juggernaught is already taken. It's a battleship with many (and I mean MANY) cannons to annihilate those puny human/evlish ships. :D