Jay, because this post was catergorized under 'computer/landscape', I knew that it was a created one, else I would have thought that you captured a real landscape. Have to conclude that you have good skills in this matter. Can therefore only say: "Very well done!"
Regards, Cornelius.
Have you ever heard of the Philmont Boy Scout ranch in Cimmaron, New Mexico? There is a certain spot in the ranch that looks exactly like that! Extremely well done! Faved!
Its ok. BIt bland. Increasing contrast will help but will not enable you to achieve the optimal correction. I think you need to change the tone curve. Darkening up the sky a bit is beneficial too.