Your concept for this image is good. It has an intersting perspective and is framed well. The bight sky is washed out and it would be better if that were not true. Focus seems too much on the soft side. This is also resized much smaller than 640 pixels and that loses detail. Reshoot this image with a "better" sky, resized to 640 pixels on the horizontal side and judicious aplication of USM and you will be much happier with the result.
It's a very grainy shot, and it needs a center of interest- right now I'm not sure what you want me to look at. Try increasing the size of the photo you submit- that will help cut down on pixelation.
I gave this a five mostly because it is a nice point of view. I don't really care for much else about the photograph. The color is boring and the details are washed out and at this size it's really hard to appreciate the composition much. The landscape itself doesn't have much 'wow' factor. You've got a good eye for composition. I gave this a four.
The image as a whole seems to lack saturation. The sky is blown out as well; unfortunately I can't comment on what to do about that -- the sky in my photos are usually blown out as well. :(