Pretty cool indeed! I really like the gnarled and twisted shapes anf texture of the roots and the very supportive background of the mirror like river.

I strongly suggest the following to give this very good B&W more punch by adding more emphasis to the roots themselves. (Justathort and one man's opinion).:
1. Crop down from the top so the top edge of frame eliminates all traces of sky. This them removes the very distracting and unnecessary area of bright sky and presents the viewer with a concentrated view of your subject.
2. Even though the slope of the river banks is due to perspective, when seen in the more detailed view of a photograph it looks as though the banks are titled. Levelling them removes that subconscious distraction and is not purely aesthetic.

Your focus and depth of field are very good and your B&W proccessing has rendered good contrast, highlights and shadows and a good tonal range.
The central composition works well here due to the nature of the spreading roots.
A good example of well though out and controlled low light photography.

GB
Dennis #1325255

Dennis has presented an opinion with merit. I'd enjoy seeing what these changes would look like.
;) CC #9023239