Surprisingly catchy.
I see where you're coming from regarding the author's comments: I first came here in 2000, signed up in 2001, but haven't submitted anything until this year. Truth is, I'm not much of a music critic, which is why don't usually write reviews for music submissions.
Instrumentwise, I like the variety that you have going here for this piece. Kind of reminds me of the Sega game Rez. In terms of composition, it may take some getting used to, but once you do get used to it; it becomes very catchy. As for ambiance, while it may not be up there with Nanashi's latest AP songs; I can see this being used as some sort of sound cues.
What I do like:
-Catchy
-Original
-Nice instrumentation and composition
What I don't like:
-Takes time to get used to.
-May not be up to everyone's tastes.
Overall: For a first audio submission, this is one of the better beginnings. Here's a nine out of ten, and keep practicing.