I wouldn't mind not seeing the faces if there was dramatic and expressive body language. In order to capture the emotion of a moment, you need to capture the most intense millisecond. For instance, if you were photographing a yawn, you need to capture it at the height of the yawn, not when the mouth is halfway open or halfway closed.
In this photo, you attempted that by capturing a dramatic moment of the dress. But we want to see it in the people. Everyone is sort of halfway in between moments. There isn't any expression in their bodies. It's just a matter of being patient and recognizing that perfect climax of movement.