Mychael,
Are you saying tarmac and weeds aren't your favorite subjects?
I sort of suspected your setting was an oasis. In that case, I'm not sure what you could've done better. Maybe add a little exposure and contrast in PP?
I like the flow of the water. This shot was hand held, I gather? If so, I suppose a tripod would've made it easier - and maybe a bit sharper, too. But, I don't carry one with me at all times either.
If you like abstracts, another way to convey movement would be to zoom your lens during the exposure: Start at the wide end and zoom in toward the long end (or vice versa - I think it works both ways) while the shutter is open. I tried that recently on some autumn foliage with a 100-300mm lens and 1/30 was slow enough to get the zoom effect.
Tim