9VIII said:There is still no basis for calling the Mona Lisa a “masterpiece” other than if the artist claimed it as such. If he didn’t then it wouldn’t even be right to call it that.
The Mona Lisa was regarded as good but not a masterpiece until it was stolen in the early 20th century - the publicity catapulted it into the public consciousness.
How many times does the value of a painting increase or decrease while arguments of its provenance wax and wane?
How many artists died destitute but whose paintings now sell for millions?
The idea that it is the artist alone who defines it as a masterpiece is laughable.