From your statements I got the impression that the bandanas mean something to this group of friends. Whatever it is, It's not coming across to me. Four of them (2,4,5, & 6) look like they could be inside a CD jacket for an Indie band. The girl in the first shot has awesome eyes and that made the shot pleasing for me. The other one just seems to be on accident.
As for some of the comments, Alex has 16 posts... Let's give some constructive criticisms. If all I had to say was a negative one liner I would have skipped on by. This comment wasn't directed at any one person, just the overall direction the thread seems to be going.