Isn't this from the old sci-fi movie Oceanworld? or Waterworld? or whatever it's called. I remember there being a trading post like this, a sole outcropping of rocks in a never-ending ocean, with a few shacks build from driftwood.
I am a reasonably large fan of the way that you do cliffs and the ocean. I like the cliffs because they seem sheer and made of slate, the leftmost cliff face even seems wet from being pummelled by the ocean. It seems to be a very dreary scene, vast and empty swells surrounding a tiny island, but what I really like about it is that because the roofs of the houses are a warmer colour, and because there is smoke and clearly life, it seems rather hopeful. A group of people persevering even in an environment like this. That's what a I really like about this.
That aside, I admire the implied complexity in the simplicity of the detail, my brain fills in minute textures. I can almost hear the waves. (: