Ambiguous, Flat, and Illusionistic Space

These first four are examples of ambiguous space.
The first is by Mark Slade.
The second is "Blue Black" by Susan Prior. Third is "The Image Disappears" by Salvador Dali. This one  took me a minute to see why this was ambiguous...but that is the point!
The last of the ambiguous space examples is Dali's "Galatea of the Spheres."

 The next four are examples of the use of flat space.
First is Picasso's"Don Quixote."
Second is an Egyptian tomb wall painting. In looking at Egyptian paintings, it seems that they were more interested in the symbolic rather than true to life representations. Apparently many tombs had painting that depicted agriculture because it symbolized the changing seasons, a process they felt was eternal.
Third is another by Picasso titled, "Seated Woman with Wrist Watch."
The last is by Rob Steel title unknown.

The next four pieces are examples of illusionistic space.
The first is called "Blue Camel" by David Cobb
Next is another Picasso titled "The Old Guitarist."
The third is Narcissus by Caravaggio.
The artist and title of the last example are not known.