Building is not centred, would have been nice to see it cropped to just the left of the big tree on the right side. This would get the building centred and remove the distraction of the dark spot.
I like the symmetry of this shot - except for it feels weighted towards the left. I think the shot would have been more effective if it was cropped just to the inside of the big tree on the right.
nice reflection in the water. I would try this with a tighter landscape crop, and maybe a little bit earlier to get even more light into the sky (yeah I know its meant to be a night shot but we can bend the rules right?)