I have been remiss in thanking you all for your comments. They are much appreciated, and food for thought! That's why it takes me awhile to respond...
Roland, I agree the brighter area at the bottom is/was problematic, and hope I've addressed that somewhat in the new link to the larger version. Regarding the parallel lines, it's interesting that you're unsure about them because that's actually what I responded to as adding (a surprising) contrast weave to the flowing washes of color. But maybe that's my desire to impose structure and order. Which leads me to eob's comment.
I love to experiment with the camera and processing, to be surprised and delighted by what can result. But, it's only satisfying if I can then apply those discoveries with conscious intent.
So, you are correct: this shot alone isn't there, yet. It was a happy accident (one of 3). But the approach might be, if I push it...
To hopefully go beyond BTDT: "yeah, another motion study."
I'm thinking intense color with movement through the 4 seasons (or 12 months). Intense November could be fun; February or March a serious challenge.

P.S. A personal project; color, line and movement seem to be the recurring themes I want to pursue.