Sending You Love...For Your Birthday

My sister-in-law wanted to use this card style for her wedding invitations next year.  The style is unique and easy to make, however, the card ends up being very small (only a 4" x 4"), not nearly enough space to place all the information that needs to be written on an invite.  To show her exactly how small the card is, I made her a sample, in the form of a birthday card. 

See how the card opens up (sorry the photo was rotated for some reason)?  I might actually make more of these for other occasions!