Answer:
This particular piece of artwork portrays Quintillian's famous quote because you are getting the artists' point of view of nature by looking at this artwork. You've probably never actually seen this particular landscape with your own eyes, but it gives you a perspective of what it could look like. Whereas, if you were to go to this exact same location, you might see things much differently than the original artists, and if you were to paint it yourself, it might look a lot different than the original. It is all based of the human mind and how different people are in personality wise, that they might portray nature/art a certain way.
Explanation:
Post-impressionism is defined as the art movement of independent styles for expressing the feelings of the artists. It was thought to be originated in French during the late nineteenth century. Among the famous post-impressionists are Paul Cezanne and Vincent van Gogh.
Calligaphy is the term you are looking for