Interesting subject matter -- looks like it was a fun time. Aesthetically, I'm drawn more to the closeups of people, rather than the 'general' shots.
Strictly from their appearance on my computer screen (they may look different on yours), the blacks appear more 'grey' than 'black', and I'd like to see a bit more punch to them (actually, now that I look at the highlights, some of them seem a bit blown).
I realize that a few of the shots have bright sunlight and darker shadow areas (and was probably tricky, lighting/exposure-wise for you), but maybe darkening them down a bit might give the tones a bit more 'oomph'. Maybe try darkening everything down by about 30% and see what happens?