 They are dominated by shades of blue and very visible brush strokes, often crossing one another.Over the years his paintings moved towards increasing simplification and abstraction, and at the end of his "blue" period, little more than the street lights and their reflections in the waters can be discerned from the mass of blue of the canvas.After 1904, when he had already achieved success with his Stockholm views, Jansson confessed to a friend that he felt absolutely exhausted and had no more wish to continue with what he had done until then.