@3dc She's meant to be hunting drowned souls for Davy Jones, so I'm just going through all the types of underwater dead I can think of. (She's a punk in a leather jacket with dyed hair and a metal t-shirt so I'm hoping people think it's set present day.)
I'm going to add more lost souls in the background time / room permitting, just wanted to get the focal bits done first. The cement shoes guy I was thinking could move around despite encumberment like other ghosts. I can always just stick a bit of rock under him if it's confusing.
Other underwater undead ideas from anyone would be appreciated.