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A very nice and serene photo you have taken. A few suggestions: the fountain is tilting slightly up towards the left; IMO there is a bit too much room left up in the top of the frame, leading the eye up towards the lighted trees in the background as opposed to the lovely fountain; also i would try bumping up the saturation and playing with the Unsharpen filter in PS, if you have it. I've attached a version of my suggestions. You've captured a great photo. Keep it up.