Thanks again for all the comments, and in particular:
Mario: my friend producer Roger also has suggested that a pretty song for an (unnamed) new baby could be popular with a lot of people if the right things happened. Who knows how something goes viral, but it would be nice. In the meantime, I think you're right that the vocals need to come up a tad.
David: I didn't know the cello RT was in there! What a great idea! I just did a quick test, and it sounds great - BIAB comes up with some really pretty counter-melodies (it helps that this song is basically C-F-G except for the Bb-G in one section). I will need to generate a few more takes, import them into Sonar, and find what works where, but I think it will be really cool for the album version. Just shows again that nothing is ever really "done."

Thank you!!!
I want to work on this now but I've spent all day recording in the basement and my wife deserves some time too.

-Bruce