Well, GoodMusician, as if you didn't already have me convinced before, those sound really great. Looking forward to hearing more of your work :)
As for prequel themes, I would understand a lack of inclusion, though we had discussed it extensively. I know MrInsaneA really likes the idea of a couple of them, and I think they maybe could be used subtly as motifs, even if not a flat out full song. But it's up to you, though I hope you'll take our input as well.