Both of the pictures are opposites, because, the blue-sky photo is very clear, and when it begins to rain, lots of clouds are black. In the blue-sky photo, you could see that there are small clouds. But in the black sky photo, there are a lot of big and combined clouds. The black sky and the blue-sky photos are also different, because the blue-sky photo is cool and hot. But the black sky photo is cold, and windy with rain. Outside it will be dark and cold. If it is the blue-sky it is sunny warm.
