"but I find the context of the last part of your review VERY insulting -- if EVERY attempt I am going to make at reproducing something I hear in my mind is more than I can chew, then I'll never get around to finally achieving that sound!"
YES. Never stop saying this. Ignore all the people saying that you're being too ambitious or something equally dumb. There is no such thing as being too ambitious. It's just that everyone else isn't being ambitious enough ;-)
On to the review.
First, a few remarks about EQ and stuff:
A bit of mastering weirdness around 1:30. That drum seems to be messing with the rest of your sound.
There is also some clipping around 2:40.
You may need something on the lower end around the 3:50 mark, to fully flesh out the sound at that point...
Heheh at the blank final minute. You can say that was metaphorical or something :)
Now, about the song itself.
I thought that this song was incredibly ambitious. I dig the concept, the rushing water sample, the really nice synth in the opening, the separate sections of the song that are interrelated. However. I feel like it's unfinished, like it's the first draft of the masterpiece. I think you should take this song, clean it up and fix all the clipping (easier said than done, I know) clean up the vocal parts and the drums. I can hear a really incredible piece in here wanting to get out - especially at the climax around 3:15, I mean wow! But the production is holding it back.
Maybe my review of 6 is too harsh. This is why I hate giving review scores-- it is impossible to condense a song into a number. This is a straight up 10 no questions asked if you fix the problems I mentioned above. So don't really think of it as a 6 :-)