Here's an enlargement of a small portion of the card so you can see the clear transparency with the white ink stamped on top of it. It goes so well with the sheer ribbon and wonderfully textured black cardstock in the background.
The base of the card is using textured back cardstock called Black Felt Grandee. It's a wonderful heavy cardstock for the base and a simple brush with white ink as shown here give a beautiful highlight of its texture. The white cardstock is Heavenly White which works great with Copic Markers. The image is stamped onto the cardstock and diecut with Nestabilities. I think added a layer of transparency which is held in place with the sheer ribbon. To stamp on this layer I used Stazon White ink. Fabulous. I also think the Transparency would look great with some diecuts that are glue-dotted on it (on both sides...look out, new idea coming).
Hope this card gives you some great ideas and maybe even some Halloween (or not so Halloween) inspiration.