There is currently an exhibition on in the Eykyn Maclean Gallery in central London, until 29 November 2013 (which if I had the money I’d go to) This exhibition shows the transition of Van Gogh’s works from his more dark, Dutch works to his expressive brush strokes such as those showcased in Starry Night and the use of much brighter colours. The exhibition claims this was a result of his brief period in Paris between 1886 and 1888. The video I’ve linked covers not only Van Gogh’s work, but those who influenced him and is an interesting delving into this period of art.
it also has an interesting look into pointillism and its influence on him, although he had his own take on it, such as dots and strokes in one colour which while not pure pointillism shows an influence of this movement.
Japanese Prints had a huge influence on artists of this period and Van Gogh was not immune. his future works showing the influence of this period, with impressionist style skies and a nod to pointillism with his dash and strokes of his brush but also his full embrace of more colour in his work.