Sweet video~ But you might want to take note of some of the framing. For example:
1)Some shots had the subjects' head cropped. Thus, you might want to give some head-space and talk-space while filming the occasion.
2)Key subject/person was normally placed at the center of the frame. You might want to position them off center a little, or along the 1/3 line of the frame, though there are occasions where videographers would film with their subjects in the center.
Takes practice, but it'll get better soon. Just a share of thought.
Cheers~