Sweet subject with great lighting, but the cropping off of his fingers hurts the image. Everything from the direction of his hands to the line of his closed eye and his lower lip lead the viewer's eye to the point where his fingers touch the fountain, and that isn't in the frame.
A wonderful candid moment, a youngster exploring the world with utmost honesty, the expression priceless. This is the type of shot that will be treasured in 50 years, much more so that probably most ribbon winning shots on this site. Well done.