not sure if you just like your pictures posted or you like the wx lady.
Testing out a 10 stop filter.
I see wrinkles in the water, which is part you try to avoid with the 10 stop. Probably the 7.1 opening is not ideal and the time of day? Would also have tried f16, which should have brought the shutter speed to 40s, probably smoothing the water. But you need to bulb and count seconds for that.
... like you suggested...