I did this study last week on location and then I came back to it with a few changes I wanted to make. With fresh eyes, I made three basic changes and I think this one reads better, has more atmosphere and provides a greater sense of depth. I warmed up the cloud with a mix of titanium white, yellow ochre and a bit of violet. I pushed the 2nd row of trees back a bit with purple and blue in both the lights and the darks, subtle but it helps. And lastly, added more dark or saturated accents in the foreground.