Very nice work, Andy! Great work on the texture of the battle damage! If there is one thing I would re-work it is the green light-reflections. They don't look light enough. They look more like coloured spots than light to me. Actually, at least in the photos, the green "light" on the padding of the helmet below the central light is darker than the surrounding brown areas, which kind of ruins the effect. Turn the images into greyscale in a photo editing software and you can more easily see the light effect. The light is more important than the colour to sell the effect.