I read the first few of the memories and associations post, and while they are nicely written, interesting vignettes, scrolling down there are an awful lot of them. Are we talking maybe twenty characters. I'd suggest trying to think about this from the readers point of view. You know and love all your characters, but the reader doesn't yet, and you're asking them to come in and read this huge amount of information. There is no way I could possibly remember all these names and characters, and I personally lost interest and gave up after a few.
Remember, to get a reader interested they need to engage and therefore care about your characters and what is going to happen to them. I don't thing that is possible with so many. I think you maybe need to decide whose story you are telling and focus in on that/those characters.
But they are just my thoughts and others may disagree. Hope it gives you some food for thought.