Rock in a Hard Place

Just for fun, here's a monochromatic portrait of Paul Chadwick's "Concrete".  I've been reading some of these books lately and quite enjoyed them.  As usual, I'm late to the party on this stuff, but it's quality is so far undiminished for the passage of time.  Well worth a read, if you get the chance.
This piece takes a bit of artistic licence, as Concrete is not really an action figure kind of character.  This
is just the way it flowed off my pen, and it was fun
to draw, and that's all I needed.