A panel of experts (or not)

Tom's been working on putting up some bead board paneling.  It's been a bit of a challenge because, with the vertical lines of the paneling, it has to be perfectly straight, yet the floor is uneven, turning it into a somewhat frustrating process.  Nothing that a little molding can't fix, though!  He finished around the stairwell and is working on the outside of the classroom.  Here are some before and afters of the stairwell.