While it's nice to see 'day' on Cybertron, I do find that the sky has a hint more of green and yellow in it interesting. The yellowish sections could be clouds reflecting the gold color back down, but the 'blue' of the sky does have a faint green tinge to it that I always liked as it made it different than Earth's skys
It's possible that I made the sky look a bit more greenly tinged than it was, because as I will also mention in the notes when they're done, I increased the saturation a little of all "golden" images to make them warmer. They were very bleak as shown in the original episode.
True, that might be it, but I was just watching the episode from my DVD set and the sky DOES look a trifle 'not quite blue' on the screen too... Though that could just be the age of my TV and/or DVDs...