I got a chance to stop by at this beach for sunset last Friday, it wasn't a great sunset that evening-but this place is too good for any conditions!, tried different shots there and this is a long exposure I tried with 10 stop ND.
I recognize that marine layer out along the horizon. And the associated gray from the color snuff plot that so often accompanies it's presence. I have folded up my tripod on many an evening like this one along that coastline.
That said your 10 stop ND did give you a workable takeaway in this case. You got some nice motion in the overhead clouds and the soft waterline and long reflections work well for this scene.
There is an issue with Uploading Photos (attachjments). I am not sure what the problem is, and I am looking into it. You can still try to Create your Threads and Upload your Photos, but it is hanging up during the Upload.