Wow. This is a LOT of music, and excellent music at that! Great job. I especially like the boss tracks. Like some have said below, they're very triumphant, and they feature some really great melodies that bring to mind some of the best RPGs around.
The ambient tracks aren't any less impressive though. Regarding those, I really like that you've gone with a more folkish/traditional and intimate vibe. The melodies and progressions being so exposed really helped set the mood you were looking for, and make the soundtrack stand out from many of its contemporaries.
If I have one very slight criticism though, it'd be one echoed by another person. I'm a longtime user of LABS, and I really appreciate what Spitfire's done with them. I also did really enjoy what you have done with those small libraries, as everything does sound great. However, here and there they will sound slightly midi.
Overall, amazing job. I can definitely see myself listening to your songs again.