Ominous Scene in Six Textures

This was done with my new Pentel pocketbrush, which used actual bristles instead of a soft felt tip like a lot of other brushpens.  This means that you can get lines that are literally the width of a single hair.  To see the difference that it makes, I recommend downloading the fullsize version of this image.  Many of the lines in the cloud, for example, are not actually visible here as anything other than a gray fuzz.