There's only so much you can do with event work like this, and for the most part, I think you've done well, but I would pay closer attention to the facial expressions of people, especially those who will feature prominently in the image. In #7, the chap in the red shirt looks quite unhappy; probably NOT the message the owners want to convey, and in in #8, the lady on the right looks like you caught her in mid sneeze or something; hardly a flattering look. I'm guessing a half-second either side would have made all the difference. Good job on the lighting here.