A nice prototype...
But too short. HOWEVER! The style shows promise and can exude expressiveness if used in conjunction with other styles. I definitely see possibility for dramatic/ horror/ tragic scene changes in this style. You just need to refine expand and study how to use dual colors in a more advanced art form ( say a reveal to a human face)
A little bit short.
This one is a way better. I see your trying to use black ink as an artistic sort of way, which is cool, and I encourage you to make more. But this is too short to fill up as amusement. Need it to be a bit more lengthy.
for a frame by frame one layer short this was pretty good. Keep working on the skill.