I believe this is called a "gate fold card." Simply a piece of A5 cardstock, just folded so that the 2 sides meet in the middle.
The softness of both colours- Bashful Blue and Certainly Celery, the pearls and the En Francais stamp, give a graceful and elegant feel. Do you agree?
Stamp Sets: Echoes of Kindness, Heard from the Heart, En Francais
Card/Paper: Bashful Blue, Certainly Celery, Whisper White
Ink: Bashful Blue
Accessories: Bashful Blue marker, Certainly Celery marker, 1/4" Certainly Celery grosgrain ribbon, Mat Pack, Pretties Kit, Dazzling Diamonds