On my monitor I have the existing MB front CA. and CA from apparently same release from Jellynote.
In hand I have CD CA. Colours are very much like Jellynote. Sea surface is green. But colour far more "metallic" than either current MB or Jellynote. Other difference is that whole left edge (1.5cm) is blue blending into the green rather than green.
This blue edge could be sun-damage/fading. The fading appears confined to the yellow ink/dye. Toes on foot at lower left appear the same as on current MB CA.
My suspicion is that the current MB front CA is a overly grey scan. And that my blue edge is sun fading.
What to do around CA?
Add scan of in-hand CA with note on suspected fading?
Add note to existing stating suspicion of "overly grey"?
(I'm thinking that CA is not actually metadata. That CD CA is a physical object.
And that brings problems.)