Great lyric and melody to begin with. Terrific song.
I, too, dig your vocals.
But this is a valid use of Suno - vocal substitution. (the only problem being That Guy will soon be singing every song like this that anyone writes. Just like how all the SynthV vocals have begun to sound all-the-same).

THANKS big-time for "showing your work".
I much enjoyed listening to your version first.
And being able to compare the AI.

Did you do a version of your BIAB production with just the AI vocal?
Your harp is worth saving.... smile

fj