The Portobello area of West London has a rich personality - vibrant, brilliant in colour, noisy, with graffiti that approach art, bizarre and splendid. An indefinable edge to it adds a spice of danger. There is nothing safe about Portobello...Eugene Wren inherited an art gallery from his father near an arcade that now sells cashmere, handmade soaps and children's clothes. But he decided to move to...