It is typical that bus drivers customise their machine (a la Pimp my Ride) in Panama. I would guess they get to compete to have the coolest ride and it since it is actually a popular movement. You can see from Justin Bieber, to Selena, to Obama in their doors.
Observational note from a foreigner: As was I told, for the Bride’s side, a wedding is not a smiling moment. Even if its a happy and well accepted wedding, there is a mourning side of it, since once a woman is married, she officially leaves her paternal home to become part of the groom’s family. Nowadays life flows very similar as in the western world, but still, the assumption of “never seeing her again” is still kept during the ritual. Now after reading this, you can check why half of the people, including the bride, have this serious, somewhat sad expression.