Wintermute, this is a high-quality piece of work. I thought the vocals, while nothing overly-spectacular, no offense, were solid enough that they didn't detract from an otherwise-enjoyable piece of music. Just a note: the vocals that contained words sounded much better to me than the high, long notes. I know it's hard to carry a single note clearly for that long, so it's not to knock your ability, just a comment.
It's a tiny bit wierd hearing that fast sitar(I'm assuming that's what it is), then the real slow vocals, but I think that's just me - for most ppl probably provides nice contrast. And just to throw my hat in the ring with everybody else, yeah, the NIN-style lead line rocks. The mix was actually starting to sound repetitive to me, then suddently it comes in at 0:57, and totally changes my response to the song. Hope to hear more soon, it was real good.