Thank you!!! That's how I imagined the feedback to look :-)
Well, what I'm seeing is that in GOUT the blue is overall of more purple tone (on R2, the pod and the sky) which I think is caused by the red shift of GOUT.
About the red sky, I tried to go back to red but it just wasn't possible to achieve through colour correction and it was a bitch to rotoscope (and I did try) so I decided to just leave it.