It was a cold, frosty morning just days before Christmas when Port Talbot steelworker Ian Lewis woke up to a strange sight in his garden.
His garage, which had looked like any other before he went to bed, had been visited by one of the most renowned street artists in the world, Banksy, who had painted a remarkable and thought-provoking mural on its walls overnight.
The now-famous painting shows a child dressed for the winter, with his arms outstretched and his tongue sticking out, appearing to catch snowflakes on one wall - but on the other side of the wall, it's clear that the apparent snowflakes are actually flakes from ash and smoke from a fire in a skip.
