Those are some impressive shots, William. I am not nearly as skilled and typically still use a degree of auto focus (my current phone camera is much better than my last point-and-shoot, so the focus is set by tapping on the part of the image of interest). I have used manual focus a bit more on my video camera, however, as in certain circumstances the auto focus does not go where I want it to. Learning more photography skills is on my to-do list and certainly something I am interested in doing at some point, but unfortunately there are other things competing for my time that take higher priority.