The work in Hearn’s latest show, By this River, demonstrates a fascination with the riverine environment, where the natural and industrial worlds butt up against and inform each other. Rivers are also places of leisure, and some of the more playful paintings, such as River Box, enable him to merge a childhood perspective of life by the waterside with a love of naive painting, in a manner that he describes as leaning towards Alfred Wallis and the St Ives school.