I went back to a reference photo for a piece I did two years ago, and thought I'd try it again to see what my take on it might be now. The previous attempt was a 30 minute sketch, posted in August 2008.
This time I'm working a little bigger, and planning on taking more time. I want to focus on color values and the contrast in edges to direct the focus (as in not putting so much detail and sharpness into the distant hills).
As usual, I started with a sketch, in a mixture of ultramarine blue and burnt ochre, and then filled in the big dark shapes. Later, I'll block in the big color shapes.