Ohhh it is getting more and more interesting !
Really like the skin crackles and arm...glowing etc..
Maybe I'm totally wrong but...you should give a little more space to your character (and breath to the illustration) if you could add a little more city (depth) environment on upper and left side (why not on right side too, for the glowy wings).
No worries, I totally understand if you don't have time for this anymore.
Good luck again !