If you could change the daytime sky to be any colour....

Yellow is a Happy color

Yellow Sky, Green Trees

Yellow Sky, Blue Ocean

Yellow Sky, White Snow

Yellow Sky, Red Desert

Yellow Sky filled with drifting dark storm clouds, on a stormy day.

Oddly enough despite my liking for blue, I chose Yellow.

Blue is just glorious, thank you very much

I'd like the sky to be like God's mood ring, so we know when he's pissed off at humanity.

White