This Is What I Do

I've been doing a bunch of ballpoint sketches of faces from magazines. I didn't feel like just posting them all individually, so I came up with a self-portrait of sorts, showing me in my typical drawing position, and three of my most recent sketches.

All sketches (including me on the couch) we're done in ballpoint pen (no pencil), and then photographed and adjusted for brightness/contrast in GIMP. I also colored the sketch of me on the couch in GIMP.

As always, criticism is welcome and encouraged!

Here are some of the original images:
[link], [link], [link]