Since this is clearly a Warhammer Fantasy (or similar miniature wargame) inspired piece, im going to give the same advice i gave another:
one thing i've wanted to say for a while is that the reason army men pose the way they do is because they are cast in a two-sided piece-mold, which means that they can have relief on two sides but at the same time they are restricted to building off of a single plane (or modified plane) without undercuts. they are basically cardboard-cutout soldiers with a little texture. real soldiers do not flatten themselves to the viewer like toys do.
...realizing of course that yours is an orc and not a nazi, the advice is the same.
few other things - your colors could use a little more depth (right now it is very "this part is green, this part is red..."). Even just breaking up each of those sections into "light and dark green" and "light and dark red" (as you've begun to do a little) would be a great help.
see how light and shadow play up on these figures? (a little overdone actually, but they enjoy that style of photography).
see also the slight desaturation of colors.
These two things go a long way when it comes to making cartoony fantasy characters look semi-believable.
