Brian stated that the clouds need some more impact and looking at the image, I agree...
I used NIK Viveza, globally, decreased brightness, increased contrast, increased structure, increased saturation and decreased the shadows slider for this result:
Thank you for posting your examples of the images
Then I used a Viveza control point to select the bright area at the center bottom of image and slightly decreased brightness and saturation to take away emphasis on that area. Finally I placed control point to select the tree at image right and used the shadows slider to open the shadows for a final result...
I am not sure if I like this better with a border or with out...