1= form and light
2=depth
refer to these websites for more info on both illusions
1- thevirtualinstructor.com/hatchingcrosshatching.html
2- www.udel.edu/artfoundations/beg_paintingtechniques.html
B, they analyse any faults in the product to try and make a better final design which will then be built
During the Song dynasty most likely landscapes would be painted to show things with relative permanency compared to the changes in society and also to show the natural hierarchy as a metaphor for a successfully regulated state.
Communication is essential for anything but it’s important for a design to be a good communicator so things can get done efficiently and correctly. If they aren’t a good communicator the work space becomes inefficient and can lead to stress
I believe value is the lightness or darkness of a color.