The photo can be used for commercial purposes.
This is a 42 MPx photo of the grass field with a horizon of trees. The photo was taken in the Czech republic. The picture also shows oilseed rape, which lines the horizon. The sky with a white cloud is also visible above the tree line.
The focus was on the trees in the distance and the camera was placed low in the grass, so the foreground is out of focus and the background is sharp.
The image can be useful as a Windows wallpaper. ;)