How about a few auras such as:
(A) Creppy tentacles, either translucent or otherwise, that swarm around or emerge randomly from the char.
(B) Fish swarms or even bunny swarms for humor. Same as fly swarm aura just different art.
also, a starfish head would look nicely horrific.
Different effects for powers, such as glowing spines for spine scrappers. Branch/spines for spine scrappers. Bone looking, organic feel to claws for scrappers. Could even be crystal claws similar to crystal spines for scrappers. But these should not be for stalkers, because they are evil and I dont like them.