i think so far you have an idea, but not a finished work. this is a relatively easy sort of thing to shoot; there's ton's of material in any city, it's endlessly repeatable, and it's very anonymous. so, more like portraiture or studio work, there's a high bar to designate an image that stands out from the crowd (sorry, couldn't help myself there). what's decisive about any of these moments?
of the shots you've shown here, i would say version II is the most promising; with the hidden leg, there's a sense of surprise or something unusual, at least. i am not sure the overall framing supports that theme very well, however.
i can get the appeal of making these sorts of photos, but afterwards you still have to step back and ask yourself, what did i capture in the photo?
sorry if you wanted to hear more appreciation; i still like the idea, i just think that you can probably get something much better, if you give it another week or two.