I thought he might be a from new space Dwarves range when I saw the first two pics
I like both camo schemes on him, but I agree with the Commander, maybe too much on one figure. One scheme with slight variations of shade on armour and clothing to differentiate them might look better.
Not that I'm criticizing your painting, as he's very well done indeed. I find shading camo uniforms diificult, but yours looks very natural. The light thingy on his helmet is especially good