Very nice series, I like best the first two and the last one. Great light in #2 and the last one has a certain movie / ad atmosphere - color works great here.
Everything works well. The color works as color because its color. I guess that means that whatever you do, it is what is needed for YOUR images....
Color shot is good.....
Sometimes, I think a shot has to be in colour. I did process the last shot in B&W, but it didn't grab me. It had to be colour, just because of the similarity of her hair, coat, boots and even the signage writing.