Well, I'm glad the consensus is that the cel is not a production cel. :D

ww12345 said:

I don't think that work you do on the coach scene will work because of the fade differences ...

Yeah, I was thinking that, too. Fortunately, there is the 35mm color-target of the girl (cropped to remove distractions):

Here's something quick to check the one setting approach for a master color correction. On the very beginning shot of the cartoon reel is shot of the girl. So, my color correction:

             low gamma   high midtone
RED         0        1.5    255           -5
GREEN     0        1.4    255           -5
BLUE        0        1.2    255           -5

LUT capture 35mm-guided color correction

Of course, this may not be accurate for this shot, but it's close enough by eye. This setting is then applied blind to the cartoon:

Not bad. It could be a little hot in the brighter areas (probably same with the girl for that matter). I'd really like to use 35mm sample shots to know for sure. ;)