I see potential in this but it does feel very unfinished (not having any sort of goal or any sort of tracking of things like blood or thralls or anything doesn't help this). However, from reading your postmortem I see that a lot of ambition went into this, and procedural animation is a hell of a thing to get working right on any sort of deadline.
I like the character designs and dialogue even though it was a bit of a dice roll on if you can see it during feeding. Sounds were also good. I would definitely love to see this further developed.