This is well written without a doubt. It drew me in making me wonder what other creatures than this "water woman" or vampire exist. Also it made me wonder just how much this Jace character interacts with humans. Well done. I can't dispute much. I suggest losing some wordiness, letting the reader picture how Jace would jump at such a speed but this is your work. Congrats one last time.
“Sorry about the blood in your mouth. I wish it was mine.
I couldn't get the boy to kill me, but I wore his jacket for the longest time.” — Richard Siken