This was an experiment to produce concept silhouettes without relying on references or even a particular theme besides "monsters". Simply creating a blotch of dark and building off of it in random or semi-random shapes. Occasionally a specific idea would work its way into the silhouette but the goal was to produce a series of silhouettes that could serve as a starting point for a more developed concept.
I wasn't too afraid of producing a few garbage concepts here and there, as even terrible silhouettes could later lead to interesting ones.