Not that it matters here but i find your assumptions pathetic to say the least.See if you won’t answer despite your put-on, clumsy, bohemian-coy, blasé.
The images posted certainly have impressionist elements, and more of those than real, expressionist elements.
You shouldn’t have used the direct phrasing of one of the first google hits: “pioneer of expressionism” (also the title of a dubious book).
That kind of gives your depth of grock away.
Like postmodernist architects are really in most senses modernists, in stance and in their use of shape and vocabulary, so are Post-Impressionists really Impressionists at heart.
There is a great deal of higher abstraction and symbolism in much Impressionism, even early on.
And the whole reason this is mentioned, is that one of the main characteristics of Impressionism and of van Goghs art, the prominent, impulsive brushstrokes, resembles out of focus areas. And are probably originally, at least partly, developed as an abstraction of that.
I never said they where the exact same thing.
Im a master of fine arts at the academy of fine arts Vienna, a painter and i have studied van Gogh.
Even though I agree that on the brink of expressionism there were many examples of impressionists already using elements from 'the future ' I would have to say that (apart from the early body of work) talking of van Gogh as a (post)impressionists means not having understood the artist. Sorry.
If the phrase 'pioneer of expressionism also comes up in YOUR Google search, even better, as it is exactly what he was.
So please stop insulting from whatever (more and more) ridiculous point you are standing.
And for his brush strokes resembling out of focus areas, well if that's how you feel..
I doubt any art historian will share your point of view.
But also that doesn't really matter.
Nice day to you.