Not bad...
I'm pretty impressed, thats a great remix, an ACTUAL remix as a matter of fact.
It was kinda hard to adjust to the bassline you chose, since I've already got used to the original-not-so-original bassline, you know what I mean, but after a double loop, it actually cought my attention, good job on that.
I'm not really a trance expert, but there are parts in which the sweeps are just a lil bit too loud and overcome the other sounds, does it have to be like that? I don't really like it.
Another thing is the leght, the very most trance songs I've heared so far didn't exceed 9 mins, and mostly were very variated during the whole song such as tempo changes, some bass changes and stuff like that, yours gets kinda repetitve.
Now the good stuff, the build-ups were just perfect, so were the FX's.
I also liked the drown-like bass, makes it sound deep and calming.
The mastering-just nothing to criticize for, everything besides the mentioned above was adjusted in a perfect way.
Overall I gave you a 9, not because I don't appreciate your work, but because I'm sure that with the skills of yours you could do something even more WOW than this, so basically the expectations are higher than from other people on this site. Not many poeple deservs that. Peace =)