Bungie you should experiment with a 'brushed metal' normal map for his armour. Make it look more metal-like. Other than that it looks really good. The environment colours look really natural and i like how they gather a bluer hue as they disappear into the background. Also if this pic is on a Halo make sure the ring is visibly seen and that clouds dont block it out. It makes it more evident you are on a Halo.