How did you/are you going to handle the timing of the yichud and all the other things going on? We're doing pictures before the ceremony, and then a receiving line after it at the ceremony site, before people head over to the reception. And while we'll do a lot of photographs before, we'll probably end up doing some in there as well.
(Note: Reform/interfaith ceremony; I am not Jewish. My apologies if I say anything completely clueless, and please tell me if I do. The yichud would be completely optional for us, but we'd like to include it.)