Using a limited palette, Rocks and Surf at Porthgwarra, Cornwall
detail of Rocks at Porthgwarra
This painting was done with just the colours above - blue, red, yellow, black, brown plus white.
The whole painting done on A4 cartridge paper but with white paper round, so a bit smaller:
and a further detail
Sometimes a limited palette is a really good exercise to make you work to achieve the colours you want :>)