[Burnsaber]

Well, here is my 2 cents.

Yeah, the black-skinned giants look a bit cartoony. My guess is that the large areas of a single color create that feeling. Perhaps yuo could accessorize (like amulets and large girdles (see my avatar for an example)) them a bit to break the areas.

My personal two favourites are the two-headed red beast (I really like how you highlighted the head to create a nice emphasis) and the tarnished gold guy with pike at the right edge (he's just all around solid, graphically).

I really like the freakish large guys in general. Those seem to be your specialty, so to speak.

I'll be around in these forums for a looooong time and I hope to see this nation come to fruition. When it does, I'll be sure to give it a whirl.