Wow, a technical tour de force, I've no idea how you made that, and it looks great.
One small criticism: the voice over. Yes, it's lovely clear diction, yes it's an accent, yes the correct linguistic idosyncracies are used. How ever, the guy sounds like "cozy uncle Otto about to read bed time stories", a kind of Christmas Arnie.
He just doesn't sound like a 23 year old blood thirsty killer, or even a 70 year old remembering what it was like to be a 23 year old killer.
But that's just me
A fantastic film.