Pretty cool for your first try!
Keep it up! Has a dark sort of feel to it. I think it is funny how differently we approach rhythms using percussion. During one minute in I would have written a completely different part. I have to agree with Kira, I think either adding strings or a build-up with distorted guitar at one minute would sound awesome! Other than that, sounds pretty good! Keep practicing at guitar!
I like the build-up, but it would have been cooler to have something more distorted in place of what sounds like an xylophone about a minute in. It could use a crescendo in the acoustic guitar as well before the xylophone comes in. It's a great start, and I see it becoming pretty awesome. 3/5 6/10