This beautiful Picasso from 1924, is one of many portraits Picasso made of his son Paul.
It is from his classical period of the 20's when he uses several styles from his earier years,
including Cubism, Classicism, Realism, as we see in this picture.

When Picasso develops a new "style", he never totally discards older style , but rather
reinvents them in wonderful ways.
In this picture, a little girl had been seathed on the floor in front of the picture,
and appears to have been listening through earphones to the exhibit's audio.