Technical
The lighting is coming from behind, from the overhead lighting and the windows too, this adds light to the background, allowing it to be seen. There is also light coming directly from in front, which illuminates his features and casts eerie shadows across his face.
The colours in the photo are warm tones, as they are mostly browns and oranges. This creates a sinister mood.
Visual
The tone is dark, as most of the objects are dark.
The texture of the piece is rough, as the objects are worn and craggy.
As for the composition, the character is placed directly in the center of the photo, this creates a sense of importance and authority. He is placed in front of a window, which allows us, as a viewer, to see into his life and what he does. The window also frames him too, which adds to the importance and authority he has.
Contextual and Conceptual
Contextually, the man in the photo is called Alfred Krupp. He was a German, who owned factories that made trains, railways and railway systems. The photographer, Arnold Newman, was an American Jew. The idea behind this photograph was to gain revenge and to frame the German for his input in the war, that killed millions of Jews. Years later he was found linked to the death of millions of Jews, and this is why this photograph is so famous. C