I think is a pretty good song. The guitar needs work. If your using FL Studio to make the guitar, which is what it sounds like to me, try tuning it a bit differently with they're effects. The song should be pretty much complete after that.
I'm using Magix Music Maker 15 pro edition, there aren't that many styles of guitar to choose from. I agree though, I tried tweaking the guitar but I can't seem to get it to sound the way I want it to. This is actually the first song I made with guitar in it, I usually do classical.