Glad to see that you are out there making images on the street.
Some suggestions, though. I notice an awful lot of views of peoples backs, or people from the front obviously shot with long lenses.
Look at the best street work--Winogrand, Robert Frank, Cartier-Bresson and you will notice a couple of things. What really engages us in these images is there specificity. They are of real living unique individuals, full of emotions and intrigue. You cannot capture this from the rear. Views of backs are best suited for generic images like greeting cards, not serious street work.
Also, they best images are always shot with wide to normal lenses to give us the feeling that we are part of the scene, not viewing it through a telescope. That direct, feel-like-I-am-there element is crucial to involving the viewer.
So the hard part about street work is standing there, right there in front of your subject, looking at their faces and not flinching to make the shot. A small non-obtrusive camera like the dp-1 is great for this. Or, of course you could be like the greats mentioned above and use a Leica rangefinder, though I think a good deal of the greats would be taken with the dp-1 if they were still around. Leave the long lenses and big cameras at home, they only make people suspicious. Shoot lots of shots. It takes considerable guts, and practice, and patience.
Also, like any photography, the light, and background are crucial. You seem to have a good sense of that so you are off to a solid start.
Sorry to sound critical, but I think you may benefit from some study of the classic images that work in the genre. Good work is never easy, though in this discipline it always looks like it was (until you try it yourself).
Best wishes.
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