Great shot you have there Len
, as above you could lighten the shadows up a bit to get some of the detail in the rocks and trees, Matt's edit may be a bit too much as it is starting to affect the water. (no offence Matt
)
other than that you have the shutter speed spot on
(i am a sucker for slow shutters)
I have been to them falls before but on the other side of the water beside the salmon ladder, i need to get back to the side you shot from as there is loads of potential on that side too.
Cheers
Chris.