Is that a Gibson?
for the first motif/theme, I'd say that sounds unbelievably great. The tone is so deep, rich, clear, twangy, and ballsy!
the rest of it is great also, but I think for the other parts, you bring the bass in, and I'm not sure what you are using for bass, but it contributes touch of mud I think. Look at your lowest guitar pitch, look at the bass - could you notch eq a little of that bass away at that point? MAybe you already did that . . . just a thought.
I'd hear an ending that has a power chord at the end, sustaining, all the way to fade out.
Keep it going, it's great work!
-Tom