I dig. Don't you love the amount of reverb you can get away with in mono? Things live in their own space pretty well here, though I'm missing the bass guitar a bit. I'd also delay the shaker coming in so that it lands on the downbeat of the next bar rather than sort of lazily fading up.
You can push the guitar licks up more for some more contrast, as well. It's a good basic mix, from what I can hear, now the trick is to get it moving so that it's got some life in it. Your BVox can also come up a bit.
I realize I just suggested turning a ton of stuff up, which may or may not totally fark all the balances up...
-D