A recent visit to Cardiff City Art Gallery was excellent. I particularly admired the Augustus John paintings, for a list of some of the paintings visit the website:
Many of the paintings cannot be photographed for copyright reasons, but here are a few I liked which could be photographed:
I bought postcards of 'La Parisienne' aka the blue lady by Renoir, 'Helen's Pot' by Cedric Morris and 'Venice: St. Martin's from the Lagoon' by Sir Frank Brangwyn. I'll scan them in soon.