Wow. This mod is really something special.
I've only had time to put about 33 minutes into the mod (college life is busy and hectic

), but what I've seen is pretty great.
Just a few random comments:
You should know that it took me about 33 minutes to find the first song. That Bind song was a tricky one! Pretty obscure location, too. Didn't even think to look there.
Also, putting some of the most dangerous creatures in Aquaria in the first stage alone? Nearly got killed a few times because of those worms with saw mouths and sharks. And the freakin' crabs. Made the wall-jumping frustrating.
On the plus side, the mod looks absolutely beautiful! There's plenty of eye candy, and the use of colors and different wildlife is certainly pleasing.
On the whole, a pretty interesting first impression, and I look forward to playing the rest!