I agree the purple lighting mockup really fixes things.
As an aside, I would have loved it if the new intro included Waverly and Growler as part of the robot roll call. What’s the point of bringing in new semi-regular robot characters in the show and not including them in the one part of the show that explicitly lists off all the robot characters? Especially when the song was already going to be rewritten for the season?
Another person took a pass on some color correction and again, it convinces me that the bones are all there and with just a little more attention to the color and compositing, things could look great!