Superb. Strong vibes of David Bowie, for me. That alternation of G major with E flat augmented is, of course, the underpinning structure of the song ... it works so well, in my view. The vocals are impressive ... not too much, not too little, just the right amount of passion, especially as this is a song about introverts. The arrangement is well balanced, and the lyrics are stellar. Bravo - loved it.