
I took out the massive amount of white highlights and gave the armor a more rounded, striated form (which I believe is what you appeared to be going for).
I removed an extra color from the blade, which made it just look dull (metal is reflective so why would it cast shadows on itself?) and that single color makes it appear as if there's something reflected on the blade from the environment.
For the most part, otherwise, minus the overuse of white to make the armor appear metallic, I didn't need to tweak much other than the general lighting on the armor a little (darkening/blending values that receded into the distance) and I fixed the scarf just a tiny bit.
I also shifted the chest over to make it appear less crunched into his shoulder.