Oh I love your style. Those B&W digital sketches are simply brilliant. Haven't seen many guys doing so rough and still readable drawings with only 2 color values. For example this http://rhinohidestudios.com/images/zp%20concept.jpg . Those eyes and teeth... Pure dynamic. Also the whole body anatomy looks quite good.
Btw, tell us if the game is getting up! Would like to test.
Keep on rocking.