Van Gogh only got one major review in his career, and he was mystified by it. When the critic Albert Aurier described his six paintings in the 1890 Brussels exhibition of Les XX as the product of a ‘terrible and distraught genius’, the artist responded that, far from being a genius, he was ‘very secondary’ and that his sunflowers – now in the National Gallery – were no different ‘from so many pictures of flowers more skilfully painted’.