Hi zpzn,
Beautiful shots of the sky! As to the question why the sky is blue... Blue light is scattered in all directions by the tiny molecules of air in Earth's atmosphere. Blue is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time. Closer to the horizon, the sky fades to a lighter blue or white.
Upvoted and resteemed :D
hi dear icedrum , thank you so much foro commenting <3 :D