Loses a little bit of the sharpness at a larger view (ahem - more megapixels, dear), but the composition is strong. The walkway parralls the tree line nicely, and the edging on teh water forms a nice diagonal although it tends to lead the eye away from the focal point of the picture rather than into it. The lighting and the colors are subdued and pleasant, as is the very, very sublte reflection of those colors in the water.
My only real suggestion here is to run it through a programs like NeatImage (free home use version available) to get rid of the little bit of noise that is present.