In this photo we can see that the objects in the background is blurry, this is because the aperture is low meaning the depth of field is shallow. This makes the main subject of the photo (i.e. the plane) a lot sharper and easier to focus on. The faster the shutter speed, the faster the photo takes which means that the motion of the plane has been frozen as it is spinning.

Whereas, in this photo there is a wide depth of field because the aperture is higher than the first photo. This means everything is in focus, including the background and the objects that are further away. Using a slower shutter speed means that any moving object will be blurred, which is shown here.