So far so good! The use of the vst's have this poppy sound.
Part of me wants to say to throw some inversions of the chords here and there (like you would when making variations for chops in different loops), and maybe even some dissonance into some of the chords (Maybe some diminished or augmented chords?) to give it that more haunted feeling to match the samples.
I can extrapolate if any of that is getting into jargon territory.