Marcio, once you get your frames/mats sorted, these will be lovely.
I've always shown framed miniature prints at my real-world shows -- some as small as 2" square. At that small size, I hard a hard time making perfect cuts so, eventually, began having them cut at a local frame shop. Because of the small size, they usually cut the mats from selvage left over from other jobs, and gave me a great discount price.
Viewers seem to love tiny, framed art. It really encourages them to step closer and lean toward the images. :-) To display these tiny works, I purchase acrylic display stands that are actually designed to hold pocket watches and other small accessories. At shows, I include the stand in the purchase price.
I've used a variety of framing treatments: simple black frame/white mat for vividly colored, contemporary images, and gold frames (some simple, some ornate) with a cream frame for more traditional nature shots and fancy, spiral or curvy images. I can, sometimes, find great deals on small, sturdy, wooden frames at Ikea, which I paint and finish, then just have the mats custom-cut.
Best of luck with your project; I look forward to seeing the finished product!
