This morning, the large high windows were covered lightly with rain drops. The sun was pouring through the windows strong and high above the trees. The way the sun was back lighting the trees in combo with the many clouds, created a high contrast. The sky color variations are caused by the clouds. There is some shadowing. There is clear separations of foreground and background. The white dots in the 3rd photo are from the rain drops on the window. When I zoom and focus on something behind them, they will sometimes blur. All of this is naturally occurring, which is what makes these so interesting. They wouldn't be as exciting if I made them in Photoshop...which by the way, I couldn't figure out how to use for something like this.