I'm somewhere between the two here. I like Mark's water, the brighter falls gives it much greater impact. But cropping the right side means losing half of the gorgeous orangy colours of the foliage in the BG.
With the rest of the FG area strengthened as per Mark's, I don't think the sky needs darkening. The trees become stronger in form and so stand out nicely anyway and the sky isn't burnt out, it's a muted tone which fits the shot.
Good stuff in both here, a lovely shot to have sted from as well, really nice work there Ian, well done for getting up and getting out
Cheers,
Rob