Really good tune all around. I think the song could go either way and work. I like songs that sound good in an intimate setting but can be ramped up with the full band as well. The guitars work but as others have said they could be improved. Only having one track can be tough to work with. In a dense mix a thin acoustic works but in a thinner mix I think there should be slightly more cahoonas to the acoustic guitar on the bass end. I actually think one track might work decent if the low end of the the acoustic could be brought out, but you won't get the extra space that multiple tracks would give you.
If your tracks are slightly different and panned L/R in the mix it can add so much to it.The tracks can be either the same parts played slightly different or complimentary parts, either way you get an extra dimension to the sound.
Even the way this is though, it's a nice song and I enjoyed the listen.
In the future, you can get great results from one recording by using two mics at the acoustic guitar, one closer to the sound hole and one place further up the neck. You have to experiment to find a sweet spot that works for both mics. In addition, you can also track the output of the guitar at the same time...so you get three tracks in one pass. If done well, you can essentially get the bass from one mic and the higher notes from another and maybe use the output track to compliment the mics. Panning these tracks can add a lot to the guitar sound.Providing you don't get any phasing and you're not picking up bad things from your space it can sound great, of course the mics pick up eveything, including finger and string noises.