Firstly, the _naturalistic_. We know at a glance what the man is doing. The forms in the picture, the colors, the light and shade, make an impression on the eye which is immediately telegraphed to one of the centers of the brain. The result is that we know the picture represents a man in a field sowing grain, while from the color and light in the sky, and the shadows creeping over the field, we know that it is twilight.