Marie
Just by way of illustrating what the option of a shallower DoF on #4 could have looked like, I put in some blur on the background. Hope you don't mind me doing this.
You can see that it puts much more attention onto the subject.
The consequence of this (using a much wider aperture) unless you had used a filter to slow the shutter down, is that you would have had to use a much faster shutter speed and that would have frozen the ball and the club head much more than we see them in this image.
And, in fact, I think you're shutter speed on this is excellent. It gives us a great sense of movement - the ball, the club, the sand.
So, what we've got, as well as a very fine image except for the very large DoF, is the experience of being able to study that balance between Aperture Value and Shutter Speed and the effect of the settings we choose and the need to make conscious decisions as to what settings we use based on our subject and effect we want to create.