Hmmm, it appears to be some sort of dorsal fin, or ridge on the top of a beast’s head, but I can’t tell what the critter is. No doubt a Witcher could tell... those poor sods in that patrol are in for a bad if it’s a large predator.
The shield maidens look great already. I’m looking forward to seeing them completed. (Great thread overall, by the way, not sure if I’ve commented on it before, but I like your vision!)