I'm going to make exactly the same comment as on your last posting. There is far too much space above your subject's head that is not adding anything to the composition. A similar crop to what I suggested last time would work. If you want, you could crop right into the subject's hat.
Last edited by Hanginon; 17th June 2018 at 04:04 AM.
Actually it looks like what Javier has posted is simply an uncropped image that has come out of the camera. This ratio's history has its roots in the 35mm camera. Prints, which is what we traditionally think of when looking at portraits, were determined by photographic paper sizes, which never had the same height to width ratio as film / sensor sizes. These tended to be closer in the height to width ratio than film / sensors.
This issue has more to do with how the image was framed than the aspect ratio of the image that we see. There is no "rule" that suggest a particular height to width ratio for portraits.