Wista SP 4x5"+APO Symmar 210mm/5,6 Velvia 50
Love the contrast between the blue birch trunk in the shadows and the warmly sunlit background & reflections. To my eye the immediate foreground is a bit messy and distracting, including the reflections at the lower right. I might prefer it with the bottom cropped to the base of the tree and grasses.
Of course, it may be just gorgeous as is, in a good-sized print; tough to tell how it really looks on my crappy office monitor.