I never cease to be amazed that one can get such excellent results at f/1.7 with this lens. I wonder if I shall make his age! Looking into the eyes of this gentleman is much more exciting than seeing yet another invitation to "upgrade" iOS...
Loaded with personality. The raised eyebrows and the direct gaze are strong and connect directly to the viewer. The trucks imply strength as well. They are enough out of focus to 'pop" the subject but they are still easily recognizable for what they are.
The cardigan V, the lapel V and curve of the collar might have been painstakingly arranged in a studio to give such perfect framing for the head.
I don't know what defects it will have (every camera has them), but what I know is that it is a real pleasure to see the photos opened at a good size...