Here is one way that I like to experiment with new compositions and colour palettes.
At the end of a day in the studio I paste pages taken from magazines into an A3 visual diary. I choose magazines that have high quality heavy paper because I like the feel oof paint on that kind of paper.
On the two pages in the image below, are pages from a magazine featuring swimming pools. I taped off the pages with green painter's tape because I intended to leave sections exposed. I use PVA as glue, as it adds a layer which thickens the substrate, however in winter it does need overnight to dry.
The next morning I paint very freely over the magazine pages. I use the exercise to experiment with things that are on my mind.
Below I was thinking about muted tones and composition. No matter what I do, an underlying theme of landscapes comes through. Interesting to observe.