Okay, Slobodan. Let's call Jackson Pollock's work "Impressionism." If nobody knows or cares about the difference then you've confused the definition of the genre to the point of meaninglessness. What you're telling us is that there are -- or should be -- no genres in the art world. Everything is just stuff.
And Bernard, I'll agree that both of your B&W's are street. The first one isn't strong because the story is mundane and not the kind of thing that gives you a jolt. The second is a little better because it contains some ambiguity. Yes, you can do street, awkwardly, with a long lens. In the first B&W above there's nothing in the foreground that shows the linear perspective distortion the lens gives the scene, so you're home free. In the second case the long lens actually helps because of the distortion. The main problem on the street, though, is the fact that a long lens on a DSLR body draws too much attention. If you want to do serious street, as Stamper suggests, try a micro four thirds with either the equivalent of a 50mm or 35mm on it. You can move among 'em unobtrusively and, as HCB suggests, "approach tenderly, gently on tiptoe."
