2nd entry for Aug 3, 2013

(I'm happy to note that the Aug 19-23 Anatomy Intensive at the TSA is definitely running, and there is a bit of space remaining for anyone who wants to join. You can enroll here.
Fall TSA courses - in Life Drawing, Portraiture and other studies - start mid-September, you can learn all about them (and sign up) here.)

From the top, these are two 15-minute studies, a 20-minute one and a 10-minute one.
The top one is on 18 x 24" Canson Recycled Sketch paper and the other three are on 18 x 24" sheets of Canson Mixed Media paper. All are done with a range of Copic warm gray markers plus sone Pentel brush pen.
The 20-minute one has a better balance of black line to gray; with the brushpen, images can shift into an illustration/comic-y feel more readily than without it. On the 1st and 4th images I ran out of time, hence the varied degrees of detail on them. But the more fully developed areas do function as a focal point within the studies.