On 21 February the Mall Galleries in London open two free exhibitions, both of which run until 26 February. The first is The Wapping Group of Artists: London and its River. The group meets every week between April and September to paint various stretches of the River Thames. Shown above is Alan Runagall's accomplished watercolour Late Summer, Richmond Bridge. About 100 works in various media will be for sale. The second exhibition is Rhoda Pepys - Paintings of a Century: Retrospective of a South African Woman Artist. This doesn't look so promising; but it is free.