Giant Mask: Horror Head!

Step 4 True Grit

One last coat of papier-mache bears out my supposition that the paper-mulch step was a good idea. The skin-ridges look much nicer than they did before, and the shape of his ears and nostrils is much (if subtly) improved. Because it's made of newspaper, the detail can be difficult to see, but this mask is looking more and more like I had envisioned it.

After allowing it to dry for a few hours, it's time to sand it!
Some people are really picky about the grit, but I honestly just sanded it with whatever was convenient - in this case, a slightly-used, relatively fine piece of velcro-backed sandpaper intended to be stuck to an orbital sander (incidentally, the sandpaper had been around for a few years, since I originally bought it as a means to artificially age a long coat as part of a scarecrow costume).
I just sanded the whole face. Do you require special instructions on how that works? You just make it smooth, and then you stop, and blow off the dust, and then it looks all pretty.