Disclaimer: I'm no art historian or expert - this is driven from the remains of my school knowledge.
Actually impressionism comes from impression and was the idea to capture what is seen as opposed to capture a concept of something.
It was something opposed to the "old masters".
The impressionists maybe were some of the very first "photographers" and their relation to the light is similar to ours.
So - you could say taking photographs is the final point of impressionism.
Because of the role of light in impressionism, I believe any photograph capturing the quality of the respective light conditions,
be it available light, "blue hour" or high noon, is impressionistic in the mentioned original meaning.
Since the "raw seeing", especially of the light is essential, blur and pointillistic style (like found in reflections in ripples of water) can do this,
but I also believe it is not necessarily so.
In this sense I believe the images you presented are impressionistic and I'd like to add two of mine I'd see in the same category though completely different:
(click images for full size)