I think it's a visual reference to the "he was all of us" comment
that Evey makes at the end

it's still rather unnecessary though, I thought it was quite tacky really
( Mushroom, Thu 10 Jul 2008, 11:57, archived)

NOOOOOOOOOO!
it was hell to go through to become V. He had been tortured by the government for months which turned him in to what he was, then he did the same to Evey so that she would be his successor. You can't just put on a mask, otherwise why did he shave her head and lock her up?!
( HappyToast sorted on, Thu 10 Jul 2008, 12:00, archived)