the image itself is executed well,
the background is a bit too bright (maybe burn some of it really a bit just to even things)
i too think the point of interest is the moon's reflection, but it is small and it takes some time to notice,
what you want from your subject is to be the first thing the eye focus on without a doubt, it is small enough to compete with other elements in the foreground in terms of viewer's attention,
I like the gradient feel of the sky, its very smooth.
if there was some more strong point of interest, say a crocodile in the water or an animal in the foreground to the right, it would do the image wonders... but we cant have all of what we want, and with what you had to work with you did just fine.
overall the image is nice imo
edit: and of course, sharpness is fantastic!