The Romans adopted the Greek's use of realistic features when making human art. Both Greek and Roman human art could be very unforgiving, meaning that every blemish on a human's face was included in a Roman sculpture or painting.
4)Landscape art, as landscape art focuses on paintings of mountains, rivers, fields, etc. Bob Ross was a good example.
The primary goal of propaganda art is to convey a political message and/or to influence a particular group to support something.
Draw an wavelength it creates equal rhythm throughout