We highly recommend doing your couple and bridal party photos following the ceremony (not doing a first look).
When we skype we can discuss perfect timing for photos. There is a number of reasons why.
The light is super harsh in the middle of the day especially in the summer months and the worst time possible for photography because of the angle of the sun being directly overhead. If we have to photograph in this harsh lighting you will end up with big shadows under your eyes ( panda eyes) because of the orientation of the sun – not very attractive 
Your hair and makeup/dress will generally get pretty ruined if you do your photos/first look before the wedding (and no one wants a hot sweaty mess) before you get to your ceremony.
Couples don’t seem to let down their walls and are more anxious/nervous/stiff before the ceremony. We have found everyone generally feels more relaxed following the ceremony.