Portrait stuff and exercises

It's quarter to one in the morning and I'm trying to study human faces plus light and shadows.

23.08.2011:

woman (0.5 mechanical pencil; with reference)

Same day, but 4:00 pm ;)

photoshop exercise I  (with reference)

photoshop exercise II (with reference)

squirrel and parrot sketch (0.5 mechanical pencil; animals with references)

22:20 this evening:

(It's so great. I found a brush adjustment, which looks like pencil strokes ;) )

no references (Photoshop CS4)

Later this night:

female eye; no references (0.5 mechanical pencil)