Melanie, those both look pretty good to me considering the challenging lighting. I think if anything it's lighting/metering issues, not the film.
It's tough to shoot in low light and you've got a big highlight on the bride's dress and the groom in shadows.
The devil guy is pretty well exposed it's just those bright lights that are blowing out.
The stuff isn't magic, it's just fast film.
I just ordered some FUJI super-prodol developer from Japan to try out with it. My last batch in HC-110 was OK but the grain was a bit mushier than I like, which I find happens in HC-110. Going to try some stand developing in Rodinal next roll.