I've been trying out acrylic gouache paint recently...I really like the texture compared with regular acrylic paint because it dries totall matt and has really saturated colors.
These are two pictures from the Oregon coast.
Both of these paintings were painted with a limited palette including: ultramarine blue, alizarin crimson, burnt umber, hansa yellow. the square painting also used windsor violet. And titanium white for both, but of course.