Final answer:
The main subject of Greek art during the Classical period was the idealized human body, with Greek sculpture and architecture reflecting a commitment to beauty, proportion, and artistic humanism.
Step-by-step explanation:
The main subject of Greek art during the Classical period was the idealized human body. This era marked a shift from the more symbolic and grave-oriented art of the previous Archaic period towards more realistic and lifelike depictions of human beings. Greek artists were known for creating sculptures that celebrated human potential for beauty.
These classical statues combined the most attractive features of various live models to craft a 'perfected' version of the human form, which was the essence of artistic humanism. The representation of the human body was also evident in architectural structures such as the Parthenon, which reflected balance and symmetry, often utilizing the golden ratio.
By the Hellenistic period, Greek sculpture evolved to include more diversity and emotion, yet still carried the influence of the Classical focus on idealism. The human form was depicted with a greater sense of realism, but the underlying commitment to idealized beauty and proportion remained a central theme.