some sketches I've done since the last sketchdump:
A ninja (I checked out the ninja Arena challenge thread and got inspired) -- about 3 minutes with a pencil and 20 minutes with a marker:
Superman headshot. I was experimenting, trying to get the shape of the head and neck right:
This last one started off as a "Wolverine as a samurai" sketch, until I decided to do away with his Wolvie hairdo. You can still see the outline of his Wolvie-do. A random forearm/fist in the background also.