I can see the chaotic, but more than that, I see the very strong vertical lines. I love how you can peer into the image and see another little detail that you hadn't noticed previously - that's rather more prevalent in the original RAW than perhaps here. So yes, it is a conversion from a shot taken on the 350D.
As for banyan, all is explained over here --> banyan
No, no flash involved in this, though I can see why you might have thought that. The effect here is just down to the colour of the tree bark, the depth of the shadow areas and the processing.