Firstly, the sculptures only reminded a human, But in Vth century B.C. in Greece was age called classicism, in this time artists wanted to find the ideal shape of human's body. This form was for them exellence. Policlet, for example, carved Doryforos, in which the head was 8 times in whole body.
In Rome, except the figures of gods, artists also carved only busts, there weren't ideal, but realistic. But in the age of empire the rulers wanted their carved figures to command respect and wonder, the artists made the rulers more beautiful.
In this epoch the sculptures were offish. They had no expression, very little animation. The body was carefully coverd. People could see only the figures hands - the sign of humanity.
Prophet Isaias (???)
The sculptures had sacral character. They were made to diversify the large interiors of the churches. The folds of the clothes were very stiff. People who created in this time didn't sign their works, so all of the sculptures are anonymous.
Part of cathedral in Reims
In this period fine art returned to classical, ancient style. There were many new trends, mainly humanism, artists followed the movement. Artist were inspirered by Ancient creators. The works were animated, but still not very dynamic, rather statical. One of the most popular artists was Michaelangelo, and his vision of David.
The sculptures were very dynamic. The creators made the contrast between the light and the shadow by using irregular lines. They handed down in their sculptures a very strong feeling, they wanted to show an action. That's why they carved collective compositions.