For this month’s painting project we’re at Camus Mor on the northwestern tip of the Trotternish Peninsula on Skye for a scene with a foreground of large rocks, a middle distance of pebbles, and a green hillside at the back.

For me it lends itself to a composition focused on the rocks and pebbles, that lends itself to expressive mark making and textures, to abstracted with its feet in realism. The different colours, sizes and shapes in the rocks.
One of the compositional choices would be whether to include the sky and hillside at all. There’s the enticement of reflected colour in the sea — blue from the sky and greens from the hill. Plus the line of colour of the washed-up seaweed on the high-tide mark. And the echo of green between the foreground seaweed and the hillside.
There’s a lot going on in this scene, so consider whether you’re going to focus in or go wide and include it all. This is view to the right, with the whole of the hillside:

And here’s some video I took at this location. Add a soundtrack of waves lapping and pebbles rolling, and the feeling of little breeze tickling your hair.
With the greys and browns, it’s a chance to use a blue + orange + white recipe as this produces a range of interesting browns and greys that harmonize together because they’re all based on a mix of same colours. If this is new to you, maybe try cadmium orange + phthalo blue. To get light tones, you’ll need a good lump of white.
A perylene green (or black) will give you the strong darks, and mixed with yellow it’ll produce a range of earthy greens.
I’ve painted this location quite a few times over the years, most recently using granulating watercolour, which I’m enjoying for the sense of texture it gives. See: