A first look moves your portraits before the ceremony. Without one, portraits happen after, during cocktail hour, and you join your guests at the grand entrance.
With a first look
You are dressed about two and three-quarter hours before the ceremony. Hair and makeup starts earlier. You get the whole cocktail hour with your guests.
Without one
You are dressed an hour and a half before. The first time you see each other is at the end of the aisle. You spend most of cocktail hour on portraits, and we send a plate of whatever is passing.
See both
Switch the first look on and off on the timeline. Watch the hair-and-makeup start time and the portrait rows move.