I didn't notice the symmetry as much as the soft renditions of the water and the clouds (but maybe that's what you meant). It has a very peaceful feeling. I think the photo is overexposed. I tried a very simple but significant global curve adjustment, and I really liked the result -- the water became more mysterious, the rocks in the lower right popped out against the darker water, and the colors became more saturated and, IMO, probably more like what you saw.