The use of negative space is great for invitations.  The blank space can be used for Save the Date and special messages. In this picture, I made sure to leave plenty of space for such a print. 

Couple: Adolfo & Alyssa
Mood: Happy
Type: Posed
Time: Day
Camera: Canon 5D Mark III
Lens: 24-70 2.8L  at 8.0
Shutter 1/200
ISO: 400
WB: 5100
Lighting: Open Shade