Marker and Charcoal

Just some recent life drawings.  The first two were done with marker in my sketchbook.  I haven't done much work in marker, but I think I like the way these worked out.  Thinking I'll try exploring this medium more.  One thing I like about marker is that you have to plan out your values more carefully, because you have a vey limited set to work with.  John Watkiss http://johnwatkiss.blogspot.com/ is a master at this, but I think he is using both marker and charcoal together - also something I want to try.