Kessling is not just a landscape painter, although the rolling hills and fields where he lives are instantly recognisable in his beautiful pictures. He is a weatherman, fascinated by heat, sudden downpour, oncoming storms. He is a poet of the soft shifting light. His smallest paintings, not much bigger than a paperback, are condensed sonnets in praise of the sunset or dawn. But he also works on an epic scale, biblical weather travelling across paintings more than twenty feet square. Laura Cumming – Art Critic, The Observer.