After buying a set of small canvases, I wanted to practice some more on my shorelines. After three hours, this is how it ended up:
For the rocks I used a palette knife, painting in a base colour of ivory black and ultramarine blue, and some highlights using titanium white, umbra nature and yellow ochre. For the sea I used ultramarine blue, turquoise blue, titanium white and some ivory black.
To paint in the wave I used a fan brush and a flat brush, dragging the paint into a falling motion.
All in all it was a fun session, but there is still a lot to work on in future attempts.