Great post HBG. Being youger, my most vivid memoriy of the bride was her candle & veil. I see that it isn't needed, however it fit the mood perfect with the dark attic and the dim flickering cadle.
With the attic not being as dark anymore it lends to your theory of being unecessary, but it is a tiny feature that I do miss. When the bride wasn't an obvious murderer it gave the illusion that she was in search of something. Most likely her true love.