OK I can not tell very much about the quality of music since I am personally not that much engaged and interested in filmmusic. So do not take me too serious when I ask for the title and the scenery it relates to.:
As far as I know Grimms Märchen might be magical, enchanted and a bit heroic but finally always very harmonic and seem to me definitly not that much dominated by the dark gloomy sentiments which characterizes your scenery and allusion to midnight and Halloween.
Grimms fairy tales are (in germany at least) read for little childern for sleep - not to make them afraid for the dark night to come - but to make feel them save in the magical world of dreams in which finaly always the good ones prevails as everybody expects as soon as the fairy tale beginns with "once upon a time..." .
So since the scenery of your text does not appeare very much like any fairy tale I would perhaps think a bit about he title. Since the music also reminds more a ghost, vampire or atrocity story than any kind of fairy tale I would perhaps prropose not to mingle in the title those two in my impression pretty different kinds of litatery allusions.
If you really meant to get something more fairy-tale like in your music you know of course aswell Mendelssohns Midsummernights dream or Engelbert Humperdinck famous late romantic Opera "Hänsel und Gretel" In my eyes this is an also very inspiring, but quite different world of musical thinking.