I love the first one, my only pick would be that the neutral density filter line is pretty obvious, though I realize that this should wouldn't even be close to possible without using one. The rule of thirds rule is certainly made to be broken, especially in landscape photos, where you can apply the rule in a left to right fashion to compensate.
From a practical standpoint, shooting wide landscapes and placing the horizon high or low leaves you dealing with the problem of distortion. You can, of course, crop. I am a bit of a purist though. I prefer to do what I can in camera.