First of all, sorry to hear about such a tragedy, Roger.
The song sounds pretty good so far. The drums could probably come up a bit I think, especially when the guitar is playing. And/or maybe the guitar should come down a little. Also, the song seems a bit long, but maybe some vocals will help there. I guess everything after 6:00 is the "heavenly" epilog? That bit sounds nice and airy. Fitting.
This is a great start to an epic song. Good luck with the lyrics. ;)