This lesson is really just an attempt at creating a dark ominous sky and an exercise in learning a little more about painting rocks. Remember to draw your rocks big angular and hard that is what they are. Give them prominence but low enough in the sky that they will allow the sky to breathe. I am using a very dark value scheme and lots of rich dark blues, browns and yellows. Have a really good time with this a pay attention to the painting you must scrape the rocks just when the glisten has left the surface not after they left the paper and the whole thing dried. Big Brush, Bold Colors, and Brash Marks. 
15 x 22 arches paper
Big brush with rich pigments Ultramarine, and Cobalt Blue, Cadmium Scarlet and Burnt Sienna. Just paint to the top of the rocks. Really try to have a nice value range in the sky.
Load up the bottom with rich sienna pigments darkened with Burnt Sienna and Olive Green paint all of the rocks and don’t forget to pay attention to the surface waiting just the moment when the glisten leaves the paper.
Scrape the rocks, drag a rigger over the surfaces to get some fissures, and darken the water and brush in some movement on the water just above the rocks. You are not only creating water movement but also emphasizing the edges of the rocks, pushing them forward.
Love this quick painting–love the clouds at the horizon–it almost makes me dizzy to look at it–so much movement! Okay, I’m off to paint–inspired!
Congratulations! it very sample, very, beautifull,invites you to try, thank you, you’re a genius who accompanies us every day! is an honor for me to read you and see your paintings
I agree about those horizon clouds.They’re the perfect link between the the powerful sky and the unyielding rocks!
I have a feeling there were a number of Rocks and stormy seas painted today, including one from Carmel CA.
I loved your explanation. The rocks are a matter difficult to interpret and you’ve presented it very simple with very useful tips. Once more thank you for your generosity.