Using a paste-brush, apply a base of wallpaper adhesive to an area of the wall about 2 feet square. (It's best to work on one small area at a time to avoid the adhesive drying too quickly.) Wear rubber gloves to protect skin from the adhesive.
Lay torn pieces of paper in a random mosaic pattern, piecing them together like a puzzle to cover most of the surface. Select bigger pieces to form a bottom layer. With most of the area covered, add more adhesive over the bottom layer, then add more pieces of paper.
Once the entire wall is covered, prepare a glaze by mixing a small amount of brown acrylic paint into a can of polyurethane finish. Make certain that the ingredients are mixed thoroughly. Apply a thick coat of the polyurethane glaze over the wallcovering.
The variation in shades resulting from the layering of paper makes for a nice patina effect. This finish is well suited for a room that utilizes warm, rich earth tones.