The postcards should be very similar to the posters in design to keep the branding consistent throughout. However I thought of added a neat little detail, each postcard tells you a bit of information about the image on the card so that serves two purposes; it promotes and it informs/educates. The stock the postcard are printed on will be satin which is only printable on one side therefore all the information will have to be placed on the front of the card.
Final Postcards
The postcards weren't too difficult to develop or design because they pretty much followed the same guidelines as the posters, they've turned out really clean and minimal. None of the attention is take away from the image nor does it interfere with anything else, eveything works in unison as a whole.