Unlike most of your work.. I find this piece somewhat disturbing. Not your craft per se, but more the feeling I get from the illustration... it's as if you're depicting a feeling that I've had for awhile that the planet's youth has finally been zombified. They finally found a way to dullen the youth to the point where a true revolution is no longer possible.
feels like being pressed in a crowded elevator facing everyone else (not that I've done that!)
the facial features are great, with the subtle differences in shape and texture of eyes, noses and lips. That grey/blue tone on the tips of chins and noses gives a slightly cold hard edge to it
Excellent work! You've captured a range of faces of there, all equally different and each with their own details to look at
Very enjoyable piece! I love the guy right at the front with the hat, really gives it something different.