It depends on your definition of a portrait - the picture given does not fit the normal definition of a "portrait"; it is an OK picture but not a portraitMy definition is a picture of one person, doesn't have to be head-only or head+shoulders. Full-body and 'environmental' portraits are still portraits in my books. But that's just me, anyone have other definitions?
I agree, that first image meets the definition of a portrait. The second one is not, because there is no face or expression, its a snapshot.
Here is a commonly accepted definition from wikipedia, andthe image of the young boy certainly certainly qualifies.
A portrait is a painting, photograph, sculpture, or other artistic representation of a person, in which the face and its expression is predominant. The intent is to display the likeness, personality, and even the mood of the person. For this reason, in photography a portrait is generally not a snapshot, but a composed image of a person in a still position. A portrait often shows a person looking directly at the painter or photographer, in order to most successfully engage the subject with the viewer.