The palette
Water everywhere, and in two tempers: the long soft channel running off the sheet, and the hard rectangles of the docks along its banks. That gives one colour two jobs, and it works. The far shore brings a second surface: its woods take a tint, and the strength of their green sets the balance of the sheet. Deep, it makes that bank a mass that answers the port; pale, it keeps it in the background. Finally, set your ink so the basins keep their edges: they are the only right angles on a page of curves.