I wanted to make a fitting look with one of my most favorite Greatswords (Dark Harvest) on my Reaper.
The Headpiece was chosen to undermine the "become one with the sword" theory. By not seeing anything with her own eyes, the sword is "leading" her and she sees through that. Also the Oxblood color tells that she got blinded on atleast one eye and the strap got some bloodstains on it.
Other than that I tried to fit the colors with the sword as well as have the armor overall fit at the same time. Given the black, metallic look with a few dark red/purpilish accents in the sword, this is the outcome.