Greetings, I think you are on a good track with this song. I'd like to comment on few things after listening to it: I feel the drums & bass are a bit too sunk and then the vocals are a bit too loud. Perhaps some re-balancing would help. Perhaps you could also experiment some panning. As you have several simultaneous vocals through the song, you could try to pan them slightly different places around the center. Also, if the piano is a mono track, you could experiment with some reverb ambience and/or panning. So each instrument had their own place in the mix. Now it sounds like they are all just piled on the same spot. Or is it just that the mp3 is mono for some other reason? cheers