I liked bracketing the story with the coastal photos. Very pretty. The quick dissolve from the first shot to the second didn't work for me. If you were trying to set a peaceful feel, a slower dissolve would have worked much better. The moves on the archival photos worked well, but dissolving from a zoom in to a zoom out is a bit awkward, try mixing a pan in between. The light behind the historian was too bright, it takes the focus off of his face. The screen saver in the wider interview shots was extremely distracting, as was the really wide interview shot with the printer in the foreground. I know you wanted variety in the interview shots, but only do that is something in the wide shots actually adds to the scene. I didn't understand the random fish-eye shot on the side cut away. Again in the second interview, I didn't like the wide composition. If you were doing a story about his hat collection it would have been nice, but I don't like random stuff in the foreground unless it's germane to the story. His hair was overly lit and his face too dim.
I know this is all really nitpicky, and you were just trying to help a less than visual story, but I found that many of your ideas here were more distracting than not. Did you run out of underwater shots to use? I would have liked to see more, possibly covering the interviews.