I think they sound good. Your self described "sloppiness" adds lot's-o'-character to your playing. I personally love finger noises, it reaffirms that a human is playing .
That first one, the .wav, is HUGE, it's nearly 22 MBs. You might want to crunch it to mp3 . You can normalize volume levels of wav pretty easily but if you want to alter the volume levels of mp3's use MP3Gain. Other normalizers would decompress the mp3 to wav but that one doesn't... very nice.
I'm playing around with your ohwell.wav. I'm learning this piece of free software called Audacity. I'm seeing if I can remove that hissing noise... it's doing a decent job so far .