As for this picture is doesn't do much for me. My criteria for celebrity photography is, if it was Uncle Bob sitting there would it be a great picture. To me the answer is no.
That is interesting. I came very close to mentioning that very thing in my original post but I disagree with you. I think that if it was someone's Uncle Bob, it would say a lot about him. If Uncle Bob were gone, I would prefer this photograph as a remembrance of him over something more formal or outside of his personal surroundings.
That is called grain. It is supposed to be there.