Very nice! :-D I have also gotten hooked on fabric postcards.
I use Fast2Fuse for the interfacing. It is fusible on both sides so all I have to do is fuse one side, quilt it, then fuse the backing. I have also made the backing by pressing freezer paper onto muslin and putting it through my printer. I use the master copy from the preprinted panel of postcards I got from an LQS. It is made by Avlyn and a really easy way to begin making fabric postcards.
judee
ps. I am also in a few swaps on swap bot for pcs. Join us!