David,
I always enjoy reading your detailed recounting of your musical journey.
A good rhythmic Pop track. The combination of drums, bass and stab-y piano is nicely infectious. You have a good handle on adding "a bit of sugar" along the way to add interest. The organ, for example...
Love that stop @ 1:00.
I'm impressed with the rhythmic singing of your vocaloid. That can't be easy to achieve. Adds nice expression. Your BGVs are impressive as well!! Nice countermelodies and call-responses...
The mix sounds good to me.
fj