I decided not to comment any songs with AI vocals, because I'm against using them, because they don't have that human interpretation, even mistakes.
But you mentioned "All you need is love" and that reminded me about a great and useful book I just read: "All you need is ears" by George Martin. It taught me a lot about producing music. One thing is, that the best meters are your ears. If the music don't sound good, even tho the meters show otherwise, they're either metering wrong things or wrongly right things.
But to your music: the background was well produced.