Good for what it is.
Really not much to say here.. It's pretty decent..
Towards the end it finally gets mixed up a bit more, but before that when the other lead comes in it sounds kind of odd. The guitar itself but the harmonies between it and the other two just seems really out of place. I'd suggest focusing on it a bit more? Maybe build it a bit, drop down to just an acoustic guitar and then come back in with that lead instead of just stacking it like that. It would give it more punch, but hey, your band, right? :P
I would give it 8, but without at least drums you get a 7, and because it sounds a little off at times I'll give it 6, but don't get the wrong idea. It's pretty well done for what it is. Good job, and keep it up. Let me know when the song is complete :D