Answer:
dang it forgot the answer hold on
Explanation:
Burnishing :) .............
Probably Picasso's most famous work, Guernica<span> is certainly the his most powerful political statement, painted as an immediate reaction to the Nazi's devastating casual bombing practice on the Basque town of Guernica during Spanish Civil War.</span>
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