Sweet little song. Leave the crickets in, i think the song would lose something without them. I live right next to a little dam, well sort of overhanging it, and there are hundreds of frogs and insects and birds, that can get pretty noisy, sometimes they thwart my attempts to record anything, but at times the bleed in has lent an ambience that i couldn't fabricate, and those frogs get some crazy rhythms going too.
The timing of the guitar sounded a bit hesitant in spots, but given there was no solid rhythm instrument, just the cricket drone, it didn't clash with anything. Could just have well been my sense of timing is out.
Was the vocal recorded outdoors while you were playing the guitar, or added later?