Sunny afternoon. The main sources of light is the sun, and sky gives back color, Some light is also bouncing between.

The brightest light is coming from the sun and is white light emanating from a small source, which causes it to cast sharp edged shadows.

The second source, the blue sky, is a very large light source and as a result has very soft shadows

the smaller the source of the light, the harder the shadows.

The light coming from the blue sky has a very strong colour cast which affects everything in this scene.