It's important to remember that there are many Monet paintings that critics don't like, or that aren't 'monet enough'. He painted fast to sell and make money and many think some paintings aren't as finished as they could be. He himself destroyed a number of water lily paintings before an exhibition [1], and again a lot of the work he did when he was partly blind due to cataracts.

[1] https://content.time.com/time/specials/packages/article/0,28...