Congratulations for the FP, well deserved! I love the sound of the theremin that starts at 00:22. I always loved that sound which reminds me of a cello lost in a dense fog, crying because it doesn't know how to get home. The otherworldly sound of it that accompanies the entire musical composition adds a nice reminder that this is Halloween time despite the upbeat notes that make the backbone of the musical piece.
This piece gives me a mix of "hey, dance with us! It's Halloween, the holiday in which you can be good or mean!" and "be careful, danger is always round the corner" and in terms of sensory stimuli, this song makes me feel a sweet sensation in my mouth as if I am eating lots of candies.
The combination of the theremin-like sound and the upbeat notes, that almost reminds me of droplets of rain, add a cheerful yet eerie vibe to the whole song. I love it! Keep it up.