I did the vocals, but I don't think they're very good

I didn't play any other instruments.

aww your vox rock man good job! i love this very inergised. your vox need to be brought back a tad bit in the mix. also im not sure but i think your singing threw your nose. try not to do that because it makes things sound out of wack. but other than that, (wich is mostly minor things htat can be fixed with a bit more mixing) i love this, your vox are great you sho0uld sing more often, oh and i really liked them in the christmas song you did lol great
paperdoll

Yes those vocals definitely need to go much further back into the mix, with a nice reverb to make them as 'big' as the music is!
Except for the vocal what an excellent kick ass rock song.