When it comes to landscapes, I do what you did here alot. I expose the shot for the sky, which tends to be the brightest part of the image. That way, I retain as much of the blues in the sky as possible, and as much of the detail in the clouds w/o blowing out highlights. Then I lift the shadows in post to get the details that initially appear lost, depending on the dynamic range of the sensor to do its job. Excellent job on the post processing.