Good job man, the likeness is much closer now, and the topology looks great from what I can tell. In the 3 quarter view you posted his silhouette is quite straight - from his eyebrow ridge down to his chin. You don’t have a relaxed 3 quarter view posted so I can’t compare it to him. Maybe he doesn’t have a whole lot going on there, but it’s probably worth looking for any interesting movement you can find.
Look forward to your updates, it’s great to see the progress on this.