What are the techniques and quality of naturalism in Greek pottery development?

The Greeks were humanists, which means that they believed that the thoughts and concerns of mankind should be society's principal worry; this belief system influenced everything in Greek society from how communities were established to how pottery was designed.
Greek pottery developed over many centuries and many different time phrases and periods including the Geometric Period (900–700 BC), the Corinthian Period (700–600 BC), the Archaic Period (750–480 BC), during which red figure pottery was created, and the Classic Period (480–300 BC), when black figure pottery was designed.
Early pottery featured fairly simple decorations, such as lines, shapes, and crude figures. It was during the Corinthian era that the first evidence of animals used as decorative forms was noted. Sometime around the beginning of the Archaic period, the first narrative scenes were depicted on Greek pottery.
Around 500 to 470 BC, there was a surge of creativity in Athens and an upswell in the quality of materials and production. Artists became adept at perspective foreshortening, which allows for more more realistic representation of bodies. Another change was the decision to focus on fewer subjects per vessel in order to demonstrate more representational detail per piece.