Decent song and good playing.
I thought the lead guitar part (the part panned hard right) could maybe have some midrange further taken out and maybe a little boost around 800 hz or so (only a guess of course).
As a nearly 4 and a half minute instrumental, it didn't have enough things going on. You could probably cut some time out and help or add some instrumentation/parts.
You may also want to play around with the bass part to make it a bit more prominent. Of course you wouldn't want it to dominate the guitars, but it might be possible to get a warmer sound if it could be brought up. Caveat - I listened on cheap headphones.