>>3533102that grey shade line at the thirds dividing the image from white part of the background and putting more emphasis on Stravinsky, the triangle in the middle, the lid of piano matching the letter "b", the perfect use of cropping, his hand on his head is mimicking the support of that lid prop to the lid, the use of free space, the natural expressions on the face of Igor Stravinsky and also the pianos are seen as a symbol of sophistication, maturity and old age. Stravinsky is symbolizing all of the qualities of the piano. so both the Piano and Stravinsky are unconsciously balancing each other in perfect harmony.
for me this is a 10/10 image. the peak of portraiture. Arnold made the scale for environmental portraiture so high with his work that it became nearly impossible for any new photographer to top that.