Pretty interesting piece you have here. I really like it, specially after 1:00 when it gets all eerie. The most obvious flaw I could find was the electric guitar sound at the beginning. I would suggest getting a better sound for it, or at least add some more reverb or delay so it doesn't sound so dry. The other thing is that the wood block sound starting at 1:55, it just gets too loud towards the end of the song, and it really takes away from it.
Overall pretty good ;)
haha thaks for your review man, the wood effects in the final were added just to fill a little bit the music, and even for that i thought the middle was still a little bit empty, probably i will make more audios like this one. i tried to make a lot of sound contrasts.