What did ancient Greek sculpture focus on?

The first bronze portraits of ancient Rome were made directly from masks using the technique of cast bronze. This portrait of the lack of artistic creativity, but it has the characteristics of resemblance, this tradition has influenced the ancient Romans portrait sculpture pay special attention to the character traits of the portrayal. Ancient Greek sculpture attaches particular importance to the molding of human posture and movement, while the ancient Roman sculpture of the wonderful focus on the face of the statue. Viewing the ancient Roman portrait sculpture, if you get rid of its head, the sculpture will appear tasteless, while the ancient Greek sculpture even if only the broken arm stump also has a unique sense of beauty.