Some of your pics have great rythm. In Mexico City, the only thing you see in rivers, the very few left, is garbage. =(
Usual Stuff, garbage is probably a common problem in any river running through a big city. Better than mutant crocodiles, I guess!
Maybe I'm a nerd, but I love these pictures of the water. It's something about the way the energy and movement is captured in all the myriad shades of gray.
Daniel, if you're a nerd then so am I!