Board Thread:Speculation House/@comment-14138255-20141031002615/@comment-24891101-20141206030428

I'm more inclined to put that down to animation goofs and mask design

. For instance, in the portion where we can clearly see her eyes, the iris seems overly large. In the longer shots, the eyeholes look exactly like the eyes other sets of eyes upon the mask, suggesting that it's a model issue. I imagine it's difficult to have a character blink convincingly from behind a mask with oddly-shaped eyeholes, while ensuring the audience sees the eye color.

In those shots it also looks like the black sclera is just the rim of the eyehole. Also, keep in mind the shape of the mask, and that her actual eyes would only be visible from straight ahead. I think there's just a painted eye to match the upper ones that's mounted inside the mask, so when you see her in profile, the eyes match, rather than seeing empty sockets. It's only when she looks straight at you that you see her real eyes. The red we see also changes as she turns her head, and we see a little triangle in the inner corner as she turns her head.