Guitar sounds pretty nasty. Upper mids out of control. Sounds like a cheap amp.
Clean guitar is muddled a bit like there is too much chorus on there.
Snare sounds a mile away. Pitty pat mosquito fart snare. Definately needs some balls!
Kick sounds pretty decent, but needs more low end. The tone you captured is good though.
The toms really, really suck. Tune those suckers!
Bass guitar needs more compression. It pops in and out and isn't smooth. At around the 3:25 mark it sounds like the bassist was hitting the strings against the pickups... sounds like total butt pants. FIX IT. It sounds really bad!
I think if you improved your SOURCE you'd be surprised how good your stuff would sound. I don't see any major mixing/recording snafu's that don't involve the source itself. Tune the drums, get a better guitar sound/amp and go for it.
Overall--ok job.