You certainly learned something! Wow what an improvement!!! Really great!

Now this way, the vocals get what they deserve, a spot in the centre, and on top of the mix, making it even more clear how much warmth and soul it carries. You did a great job.

And as for the "hum" well actually I think it is also only in the intro. I think it could be a basspedal setting that you might have got activated for the intro. I tried that basspedal a view times and until now found it an ugly extra, that seems not to do what I wanted it to do, maybe it just doesn't suit my music. But well that is another story.

All in all I think you did a great job. On one way I would like to see the vocals a bit more tight with the rhythm, now it seems that you walk behind the beat quite often, coming in a bit late, on the other hand it makes the vocals also sound more ... hmmm... vulnerable, softened(?), I don't know how to express what I feel it as well adds to it.

The only thing, besides the "hum", that is still really not nice, is as Kemmrich allready mentioned , the sudden stop of the guitar (followed by a kind of misplaced single pianonote) at 0:07-0.08 seconds.

I'll be back...