OK you know your stuff rules, so I will be merciless as you seek perfection. I know this piece pretty well; in college I wrote a textual analysis of the poem compared with Debussy's setting.
The problem with the flute is the attack; it sounds like each note is being tongued. Figure out a way to kill the attack; add some portamento or something. If you really want to be cool, switch it to a panflute patch. That is really what it should be, but I don't think Debussy knew Zamfir
I like the detuned flute harmony parts (0:12); I would add more and make them more dissonant.
Overall; I dunno, it's missing an edge:
http://en.wikipedia.org/wiki/Afternoon_of_a_Faun_(poem)
Fairly heady stuff. There should be an ominous undertone; try some very deep, but somewhat hidden bass notes. The "brown note", as it were. The thunder (8:18) should surprise with the intensity of its low lows; I don't get that right now. Maybe pitch shift that down an octave and mix in with the original.
I would go for a bit more rubato on the flute parts, and some more expression on the lyrical orchestral string parts (3:52, 5:14 for example). Go for extreme highs on the windchimy parts, like with fundamentals at least an octave above a piano--maybe two! (8kHz/16kHz). You're obviously going for the electronic symphony, so take advantage of all your opportunities. This has less dynamic range than an orchestra has, which I think you need for this style, but at the same time you should milk your full frequency range.
Something's wrong at 3:15; the decay gets cut off unnaturally or something.
What is the deal with the saxophone patch (6:09)? Kenny G does Claude?
I like the organ afterward though; a bit of Saint-Saens in your Debussy
How about some tuba to make that part a bit more circus-like?
And that might make it clear that the Kenny reference is a joke.
OK I've been mean enough. Aren't you missing a final thump on the cadence?