Yeah I'd have to agree with James. Your guitar's tone needs adjustment. The "fullness" or whatever might just be the recording, but either way, it's too.... twangy? I don't know. It sounds like you are using a strat and running that through a Kustom or Fender amp? I could be completely wrong, but my friends tone sounded a ton like that for a while and thats what he was using. Either way, no matter the gear you are using, you are going to want to tweak something. I'd add a little gain, and tweak the high, low, and mid ranges.

I like that first song though.