The cleaning process might be affecting the sharpness of the final output, and making it appear softer. However, we feel that the tradeoff, when compared to the original with the dirt and noise is worth it.
Also, this is not the final render, so the colors may shift again.
Finally, the colors do need more fine tuning, especially the latter reels, such as the cloud city shots. But we don't know if we will have time for that.
Thanks for the comments.
Team Negative1