Originally Posted by
Mike Buckley
I like the sky in the revised version.
I haven't taken a long time to study the image, but I don't think it's a matter only of the camera not being level; I think it's also a matter of the camera not being positioned exactly in the center. If I'm right, the only way to correct it is to use a Skew tool as Manfred has explained.
If this image was mine, I would leave this aspect of the image as displayed in the first version and not bother with making the corrections to it. One heck of a lot of pros making one heck of a lot of money would make the same decision, as evidenced by their photos.