Wilhelm Hammershoi, Anne Redpath and the four men known as the Scottish Colourists share one thing. None is as well-known as they deserve to be. What drew me to them all was my admiration and delight in their superb control of colour and their ability to use it to create a dazzling array of moods. There is an air of quiet confidence in all these artists and a determination to produce something fresh and original. They knew what they wanted and they knew it had to be special. They play with light and colour in different ways but always with consummate technical skill, making each picture an eye-opener.