I personally have tried to take pictures of my friend's wedding as second back up photographer. The only thing I can comment on this subject matter is that "wedding documentary" is hard and is not easy for amature photographers like me.
From your post of pictures included, good job very well done. I wish I could take pictures like you. Thanks for posting your works and I learn a lot from you.
FYI: why Wedding Documentary is hard for amatures like me.
1. Lighting can not be controlled indoors, especially in the restruants. 2. Parents and relatives are shy to the camara 3. Newly-wedded cannot be instructed to pose for the camara 4. Shooting angle cannot be controled due to crowded scene on site.
Overall speaking, I believe you have done a better job than me and you did it a lot better.