Creature concept for experimental short film

This is a creature concept my director friend and I are developing for an experimental short film we are collaborating on.  There is a masculine and feminine version because we are playing with the idea of this creature being able to change its sex when need be (both are pretty androgynous but with slight differences).  We don't know yet what that need might be, but hey, that's development!
Also, this is a new style of sketching I'm trying out.  In fact, this is the first time in awhile I've done actual 'sketches' as opposed to full illustrations.  Stay tuned for more like this!