Nice work, my friend, it's definitely got something of a charm about it. Like cgod mentioned, the lo-fi quality works in this context, kind of like it worked for Nick Drake. It helps it sound honest, genuine, and intimate. Both the voice and guitar generally sound good throughout.
One thing I will say though is that when it's this one guy and a guitar type deal, some more flair on the guitar can go a long way to keeping things spicy. Just something other than straightly played chords to add some more depth. I saw in your response to Pabs that this was more an exercise in songwriting than anything else, but it's an observation nonetheless.