Yes, a beautiful photo. My personal preference, however, would be for a faster shutter speed, if possible. I imagine that in person there must have been a rather loud roar from the water and an overwhelming sense of the sheer power of the water. A slow shutter speed turns the water silky and, in my opinion, doesn’t convey the power and majesty of the falls. Rather, to me this photo, with the silky smooth water, conveys a sense of serenity (which may have been intentional). I expect I’m in the minority, however, because most of the photos I see of powerful waterfalls show the effects of a rather slow shutter speed.