Request Mix/Master Suggestions (Updated)

I'm in the process of mixing down some simple acoustic tracks and would really be grateful for any suggestions on how I might improve them, especially the acoustic guitar, either in the mix or in the masters. Most of this was done with AUD 1.5, some editing in AUD 3. The following are links to three short song segments, about one minute long. Thanks.

Clip #1

Clip #2

Clip #3

Geo, I would also like help and/or suggestions for a song of mine.  I have to tell you, clicking on any of your 3 clips gives me the message, "SORRY, THE PAGE YOU WERE LOOKING FOR COULD NOT BE FOUND."