A team of Russian Photoshop wizards are devoting their time and talent to improve famous paintings by adding a fat ginger cat into them. Recently they have released a 2022 Fat Cat Art Calendar, so go check it out or scroll down for some of the best examples of their work along with the originals!

Very imaginative. Loving the Haystack at Giverny, and Nighthawks ones.
Fantastic!
Fantastic!
American Gothic and Nighthawks are my favourites.