User blog comment:WhiteArmor/The Masked/@comment-1755153-20100415063102

You make an interesting point, I think, natural vizard or not, all of them evolve depending on how much control they have over it, i.e it becomes more complex the more the hollow inside them starts to surface, and changes drastically whenever there is a drastic change to the user.

I've never thought about this before, maybe hachi's mask wasn't "decorated" when he first had it.