Practicing my production skills

[AMT]

http://ftp.cableone.net/rebelart/Guitar5.mp3

This is my attempt at a little rock riff. My focus here was mixing and production in general, so excuse the slightly sloppy playing. Where am I at production wise? What would make this sound better? Please leave feedback. Thanks!

[Gimgak]

This sounds pretty good. The drums and rhythym guitar sound really good. The only problem is the lead guitar sounded a little muffled-ish to me, but it's still way better than any sound I've managed to record from my guitar.