I agree with everyone else. The green is waaaay too saturated. It should be lighter, and more faded(less saturated).
It might also be worth doing some stippling of the off colors into the green to create scabrous patches of rust, dirt, decay, corrosion, etc. Also creating drips down the armor using your black, brown, green inks could add some subtle differentiation.
It might also be worth doing some stippling of the off colors into the green to create scabrous patches of rust, dirt, decay, corrosion, etc. Also creating drips down the armor using your black, brown, green inks could add some subtle differentiation.