The sky was painted using a wash of cobalt blue deep leaving some lighter areas just above the distant hills. A darker wash of the same blue was used to paint the water leaving a few lighter areas. As the water area was drying a little burnt sienna was brushed below where the distant hills will be and below the middle ground.

Raw sienna was put into the middle ground and then a pale wash of burnt sienna was put over top of that while it was still wet for the middle ground.
I will post this painting at a later date once I put in the dark greens and remove the masking fluid.