The rich blue sky looks better, though I understand the reasoning behind having a slightly greenish sky’s on a planet of yellow and orange sand but it’s not a science fiction film so aesthetics are a higher priority.
I’ve never seen a version with a greenish sky. The official blu-ray looks grey and Ady’s looks blue.
I’m seeing a pale greenish tint to the sky in the Blu-ray version which might be justified as particulates in the atmosphere but doesn’t look anywhere near as good as Adywan’s rich blue. And as I say Star Wars isn’t Science Fiction.