61. Many an artist stress the importance of light. And so it is, of utmost importance, of course. Who e.g. would like to paint in a dark coal cellar? On the other hand the light by the sea is very sharp indeed, especially if one is used to indoor life of the city. So in this picture, a detail of a water colour from last week - I call it Cool Waters - the light is very bright. The thin blueish strokes is from a colour called Smalt or Dumont's Blue. That helps, I think, to create a feeling of texture and depth.