When I first viewed this image Russ I felt that the expanse of black water in lower right formed a kind of negative space that detracted from the beautifully backlit tree on the left and the sidelit trees across on the far bank.
However, I came back to this images on several occasions because it intrigued me so much.
I still feel that that expanse of black water does represent a kind of negative space as a whole however I no longer feel that this detracts from the image.
In fact, that mass of black water introduces a dynamic tension into the image in a way that little else could since it is obviously competing with that gorgeous late afternoon light and the symphony of colour from the foliage.
Moreover, although that black water does draw the eye, once there, one realises the wealth of detail that is actually there in the form of reflections and floating matter.
So, in reality that expanse of black water actually drew me into the image and allowed me to savour the wealth of beautiful detail throughout.
Finally, as an aside, I feel that this image would definitely benefit from being printed large - it would make it even easier to discover and savour the detail to be found in this gorgeous composition.
Tony Jay