Daily 2011-5-12 L-Block

I'm doing character portraits all this week!
I won't let a Tetris theme stop me!
Presenting L-Block, the most popular of the tetrominoes!

I took the time to experiment with some shading with my inking. Lines are the easiest way to shade with that pen, IMO, so I'm getting a feel for how well they work.
I don't think the shading is correct in a few spots, but what is more important is that I learn how to properly vary my shading.