Ahh, look at all of the Pre-Series 3 speculation. How young we all were: Mycroft is wearing a boutinere (sp?) identical to Sherlock's, but not a tie nor a top hat. The identical flowers mean they're both in the wedding party, but in which roles? Sherlock is dressed more formally (see: top hat) so he is most likely more essential to the ceremony. But it I recall correctly, John's outfit is identical to Sherlock's. WHAT DOES THIS MEAN?