This FireFly Render took 4 hours using your Global Lightset. Resolution is 1200x1200. Funny how the TOPS of the shoes are reflected in the floor. Also some strange shadowing things with the socks' refelction (bug with displacement maps?). Using P4 Render, the wall and floor are rendered in gray, with no reflections. This makes sense -- no ray tracing, no reflections. No C exceptions. No upskirts either.