WATER COLORS
Ovens River running through Bright, North East Victoria, Australia.

I've looked at this image a few times now over the past days.
And I have read some of the comments.
For my own (small) comment, I want to just get back to your original image, whithout all the extra information and opinions.
I can recognize what is shown here (a river with rapids), but I was at first unsure of how the effect was achieved.
My initial impression (being the naive documentary photographer that I am) was that we were looking at a "straight" shot, of some kind of event, where patches of coloured light were projected onto the water (a bit like stage lighting, but onto a moving river instead of on ballet dancers). It could have been a theatrical event or an avant-garde performance or experimental art installation.
The title would have been appropriate.
But now I realize that this is your own artistic expression, where the photo almost acts as blank canvas for a play with colour and light (and darkness).
And then the title is even more appropriate, because we are more in the realm of painting here, than of photography.
Painting not with oils or acryl, but with ... water colours.