msycamore said:
but I cannot see that continuous change in colour/brightness you describe, it may be the fluctuations and the slightly unstable colors and brightness in this old transfer you're seeing, I don't know, whatever it is you're seeing it's not something I have introduced.
About the fluctuation of brightness and colors, try to stare at the ceiling in that scene. You see that sometimes is white sometimes it goes more yellow. I'm working on a Samsung HD LED TV so perhaps it's more noticeable on my screen. Since it's in the same scene of the white spots, I believe they messed up during the transfer of that segment.
Oh and the transition is great!