Great post! I've always felt that the unity version gave this game so much more depth and visual pleasantry. The aurora and countless sunsets, moon phases and cloud/fog emersion really take the ambiance to a whole new level. I would like to contribute a few screenshots that I've taken on my travels that capture the moments I found myself surrounded by beauty and immersed in sublime ambiance!
BTW. About that sky screenshot. Did you knew that if you fly higher - you will end up in space and get whole planet view? Did it one time for fun. Was amazed.