Good performances on all the parts. Very solid.
The first thing that strikes me is the amount of compression that's been used. I think there's a real good guitar sound underneath all that compression. But it gets ear-fatiguing after a couple of minutes. There's also an audible clip in spots.
The doubled guitars are very tight. But even so I'd bring them a little closer to center. They sound a little weird on headphones. Bringing them close to center will make the doubling less obvious.
Along that line, there are sections where one of the doubled guitars stops playing (first time around :52). This creates a big imbalance in the mix.
Other than that I thought you did a good job.