Andrea, what follows are very general comments about doing documentary photos, not your pictures individually as single shots:
A couple of people have said some things I would have said, but let me put it together as I see it: The solution to clutter is not vignetting, it's to move closer and eliminate clutter from the photo, entirely.
As I look at the thumbs, there are very few photos shot from closer than about 15 feet. The general rule for a photo story is that you need establishing shots (distance), mid-range shots making specific points, and close-ups for texture. Your pictures are almost all establishing shots, and there are no close-ups at all, so though we get the big picture over and over, we get very little from an intimate and personal perspective, as one of the local people would be seeing things--essentially you have remained a tourist, unable to focus on the details of daily life. There are a few mid-range shots at the end, but they're basically the same. Each photo needs to be necessary, and there can be a few that don't work on their own, but usually they should be able to stand as individuals.
Also, a "story" usually has some sort of underlying point that the photos make, and it's good for the photographer to keep that in mind so the collection of pictures doesn't get too diffuse.
It takes a lot of discipline to keep varying one's viewpoint, and when I was working on a newspaper, I had to constantly keep asking myself if I had done that. The other two things I had to force myself to do, which you should be keeping in mind, was to always mix verticals in with horizontals, ideally getting every different situation in both formats (you might change your mind when you see the photos as to which you prefer, so it's good to have both types), and always to crop my photos so tightly that no editor could ever take something away without ruining the picture.
I learned that last one after watching my "atmospheric" four-column pix consistently turn into two- or three-column photos in the paper, after the editor's scissors hit them. There are better ways to create atmosphere than adding empty, value-free space. Basically, if you can still cut something off of a picture, you aren't finished composing it yet.
These are very basic points of documentary photography, and if they aren't there, one hasn't even started to work. I see these failings in a lot of people who casually call themselves documentary photographers but who remain, essentially, amateurs and unemployable. I am reading a book of interviews with all of the photographers who ever worked for LIFE magazine, and one of them comments very early in the book that there are plenty of good photographers, but very few who can actually tell a story
(Ahem: unlike the self-published or can't-get-work documentarians here, I actually got paid to do documentary photography full-time for seven years, and won a handful of prizes that I didn't apply for, for it. Just thought I'd say that. 🙂