See now, I like this image. It looks like a really nice scene, and the water line in the distance leads the eye in well.
I would however recommend three things.
Firstly, The use of a Circular Polariser would dramatically improve the sky in this shot (or similar ones if you head back there) as it would turn the sky a far deeper shade of blue, whilst keeping the clouds white. It would also add saturation to the ground as well, though this is quite well reproduced as it stands.
Secondly, with this sort of shot, I'd recommend composing to the rule of thirds... In this case, putting the horizon on the top third line might be a good idea. Though, this is a general rule, and not a must, so that's up to you really.
Lastly, and this is dependent on the above, composing to thirds rule would mean you have more foreground to play with. As such, finding some lines / interest at the very bottom of the image will help to lead the eye into the shot.
Oh, and lastly, some may dissagree with this of course, but for me it needs more of a focal point; somewhere for the eye to rest once moved into the image.
As it stands though, I do like this shot. Alot of potential here I feel
HTH