This was my first solo wedding. Kim (my wife) went along as the assistant and took care of light placement etc. It was a beautiful outdoor event and the weather was cooperative. Taking photos outside in the middle of the day with very limited cloud cover is perhaps one of the most difficult aspects of photography... Nothing like a challenge the first time out! Still, it didn't take too much time to get the hang of how this would work. Typically, I exposed the ambient light -1 stop and compensated with high flash out put. This allowed me to properly expose the subject with the flash and have a slightly darkened background. Approaching the lighting like this helps give the subjects separation from the background. You can see this in the first image here.
The second image I had Kim lower the umbrella and get behind the bride and groom with the main off camera flash. I turned the on camera flash toward them and set it at a -1 1/3 just to give a touch of fill light. If you look close you can see a subtle rim light around their head. I think this adds a bit of flavor to this image.