TM...very dark and interesting...I also get a Bowie vibe from your vocal which was very well done! I really like the contrast between the verses and chorus...if I would change anything it would be the line in the last verse...given the background story you provided instead of
"And if there's a world awaiting
Some reward I don't deserve..."
I would have written:
"And if there's a world awaiting
And punishment I deserve..."
But that's just me and my feud with vampires I guess

...well written and performed...Dan