Why this should be Im not entirely sure Gallery owners obviously prefer safe bets and perhaps the artbuying public is insecure and needs the comfort of continuity A few artists break the mould and get away with it Picasso and Hockney are two prime examples Eric Rimmington is another artist who is now gamely running contrary to form and it remains to be seen if he can pull it off His new show takes the daring step of swapping the pristine still lifes which have made his name for paintings of the world of the London Underground