As a once great phorographer said...just cause it was taken on the street, doesn't make it street photography.

His work is as close to that often mentioned word "candid" photography as you can get, and in my opinion since the thesorus describes an alternative word for candid is "straight forward" probably describes the ease with which pictures like that are to take.

That in no way means I am judging your enjoyment of his work, art is in the eye of the beholder, but close up street that is something to behold.