What would you have us say? They are all a bit soft. The group and lighting seems a bit lackluster. They are a bit cluttered. The problem may be that they aren't great but they aren't bad enough in ways where we can suggest improvement or that you have the power to change perhaps. But, OK, here goes:
#1 Doesn't do anything ... a girl with her head down in a darkish place with someone's shoulder on the left.
#2 Soft, should have some cropped off the top so his head isn't right in the middle.
#3 Awkward crop putting dead space behind him rather than in front.
#4 Dynamic range is drab and guitar head sticking up is awkward.
#5 Soft and same problems as #4.
#6 Interesting color effect but VERY soft and the guy's elbow on the right is bad.
#7 Same as #6 without the color.
#8 Dark, soft, head sticking out of shoulder, busy and cluttered.
So, I don't mean to be harsh, but you seemed desperate for feedback. The general level of quality here is pretty high and professional so snapshots just don't get a lot of interest ... not in any way to suggest that you shouldn't post them but most here have spent years perfecting their technique and are very serious about their work.