Great work!
I listened to the backing track seperately and felt it wasn't my type of metal. But nonetheless good!
Regarding the mixing, Zhuriel's solo was too loud and cowdog's to just right. I couldn't hear the backing track over Zhuriel's shredding.
Now to review the solos:
Zhuriel
I personally felt that it needed more than picking a single note and changing it every little bit. That being said, it was still decent and went along with the song. The beginning part was excellent though, and the effects were good.
Cowdog2
I really like the melodicness of this one, although there were off notes and sometimes misplaced notes (if you know what i mean) You show excellent control of the fretboard, and i like that!
My vote goes to cowdog2