The aesthetic criteria of the unfinished derive from Italian Renaissanceart theory. The key conceptual pair is the Italian perfezione/imperfezione, which was only revised into finito/non-finito (“finished”/“unfinished”) in modern usage [4]. The concept of the unfinished always corresponds with that of completion or perfection, aesthetically reflected in the relationship between art and nature. The degree of unfinishedness is measured according to the…