Hi, wow, loving Speak Loud...Awesome vocal too. I think the recorded parts don't sound too bad at all (I get sent tracks that have been recorded waaaay worse of which I'm expected to transform in to radio ready singles within hours). I feel this track just needs a good mix and master. Boydie is right in that you could do with a couple of mics on the acoustic (as well as the acoustic's pickup if you've got the inputs), that being said, I don't think the dark sound of it detracts from the emotion of this song, it could just do with some good ole EQ, compression and reverb. I've got quite a few recording, mixing and mastering miles on my odometer (26 years worth), so if you ever want me to take a look at the mix of this song from the original Logic file (assuming you're using Logic 9 or earlier), give it a drop of my sonic alchemy, and pass on some mixing tips and tricks at the same time, it would be my pleasure.
I can't stop listening to the track, I especially love the build of voices and instruments near the end, wasn't expecting it the first time around, nice!