The best photos have capture a moment and a feeling. (There's an element of luck, of course, since you're by definition capturing fleeting moments.) But if you can capture the mood of the wedding in your photo, you'll continue to appreciate the photo in years to come.
Sometimes it's okay to be a little out of focus, or to have less than optimal lighting - any photo that tells a story, either about the day or about the emotions of the day - is a great photo. So take a step back and think about how you can tell a story with your photos.
Sometimes it's just a matter of moving a little so you incorporate other people or objects in the photo. Other times it's simply a matter of worrying less about your technique and more about what you're seeing. Technique is important, but having a great eye is critical.
