Depth of Field Shoot

The picture is focus in the foreground

Although you can see the foreground, you know that the focus is the middle ground.

This picture is focus in the background. Although you can also see the foreground and middle ground.
In the first picture. If you notice the picture, the picture is focused on the foreground instead of the middle ground and background. You will see that the ground is the center focus. In the meanwhile, the picture in the middle is different from the top picture. If you study the picture you will see the picture is focus in the middle ground. You will also notice that it' different from the foreground picture. On the other hand, the picture in the bottom is background. If you noticed, the picture is focus in the background. Although you see some foreground and middle ground, the focus is the background.