The fascinating true story behind Van Gogh's Sunflowers: As the third iteration of the work is doused in soup by protesters, how the troubled painter created SEVEN versions which are now scattered around the world - with one destroyed in WWII <br />Just Stop Oil activists have thrown Heinz tomato soup over Vincent Van Gogh's masterpiece 'Sunflower' at the National Gallery in London. Climate activists glued themselves to the £84 million painting.