Mark Harmon sketchcard WIP

I did a WIP thing for my latest NCIS sketchcard of Mark Harmon as Gibbs, from the tv series NCIS. Try zooming in at my DA space to read it properly (clicking it here isn't so effective). It's nothing earth-shattering, just pretty much as you'd expect really but I thought it'd make a change to show the stages of progression.
Original 2½ x 3½ inch (63 x 89mm) card for sale here on Ebay until Tuesday 18 September.