This is a picture I took with my trusty G9 in Tuscany last January. Besides the horizon issue, the picture did not capture the day... wet and cold. My first experience with the Tone Curve in the Develop module solved this. I was able to selectively adjust both dark and light details in the sky and adjust mid tones in the foreground. From now on, I think I will make most of my tonal and contrast adjustments here.