Grays and neutrals are an important part of most successful paintings. One of the reasons is that they make the purer colours stand out or ‘sing’. An appropriate combination of grays and brighter colours is one way we can make our paintings ‘work’. In this image I used a number of values of a basic gray made by mixing yellow, violet, and some blue. The grays make the pure yellow, orange and red windows really stand out and the value leads your eye through the picture and deposits you at the centre of interest, the bow of the front boat.