This is an analogous painting exercise for my Impressionist painting class. Working from a black and white photo, the aim is to work with a limited palette of analogous colours and create the gradations of light to dark. The logic behind the palette is to choose the darkest colour and the lightest colour using colours that are in the same family. In this case I was using ultramarine blue, phthalo blue and phthalo green. The sttongest highlight was a cadmium yellow for the moon and water reflections.
The images below show the progression of the painting. This first stage of the painting was created with just ultramarine blue. When the paint was dry, I mixed a palette of analogous colours (see on the bottom).
Analogous colour palette:
Here is a close-up of the surface showing the individual brush strokes and the texture created by superimposing the paint: