GREAT job for your first show.
Also, AWESOME selection - the photos you chose to post here are all different, the variety is nice and refreshing! We don't always see that here.... You deserve a good pat on the back for that!
#1: Good composition, good feel to the photo. Maybe some cropping to get rid of the guy to the left?
#2: While I like the DoF here, it would also be a good shot if the guys farther away were the ones in focus. I am unsure about how I feel about the guy's back to me as the in-focus subject of the photo. Still good, though.
#3 & #4: Really cool compositions. Good color, nice shots.
#5: I wish the guy in the red shirt was the one in focus here. Is this band signed to Rocafella? Why is the audience throwing up the ROC?
#7: Nice also. Maybe some cropping here, so the guy's not in the middle. I like the light on the right and I like the space to the left, but maybe choose one? The classic Rule of Thirds would help this photo.
Nice job. Thanks for sharing. Oh, and I don't mind the watermark, but maybe I'm just trained to ignore them? It's a good font - readable but not just another Times New Roman, etc.