What did an artist have to do to become part of the guild?
a.
a panel of master artists had to approve the painting.
b.
the artist had to paint a piece in front a panel for approval.
c.
receive an examination of a masterpiece that could achieve master status.
d.
all of the above

To create an illustration of perspective, this artist did all of the following except 1) show clear orthogonal lines 2) have an implied vanishing point 3) distort proportion to keep the background and foreground the same size 4) include value changes between the foreground and background i was thinking maybe 1