The Lab.

Anything that I consider "Lab work" is typically park style sketching done with pencils to test out ideas and concepts with faces and such.  They're usually no longer than 10 minutes a sketch.

With these sketches in question, I was doing a lot of looking at old sketches from my second year of work.  All of these are re-interpretations of those old sketches using the newer methods that I employ in my work currently, just having fun messing around with them and seeing how I think now as opposed to then.  I should show some of the newbies these.  I think they'd get a kick out of it.