If you can't find the person you're after, you should just be able to print the image out and install it from the inside....the real shades/screens are like tint anyway, so seeing in through them isn't an issue. To deepen the effect I'd put a second inner layer of black paper or smoke tinted mylar** on the inside after installing it.
** if you use regular camera film, or if you know somebody who develops film, blank negative 35mm film makes nice tinted window material. It's thin enough for scale purposes, cuts to shape with normal scissors, and glues easily with KrystalKleer or epoxy.