Nice use of area ambiance. The COs were very subtle and nicely done. I jumped over all that water thinking it would kill me. A nice little improvement would be deleting the Intro and Ending folders, and change the part of the World.ini that says:
[Cutscene Music]
Intro=15
Ending=15
to this:
[Cutscene Color]
Intro=8
Ending=8
That will give you black fade-in/out.