Hi se7en,
I know you mentioned it's a demo sketch, but since another poster gave some advice, here's my 2 cents:
The drums need to come up or the rhythm guitars need to come down. I'd start there to get a solid foundation going. You should be able to hear both rhythm guitar tracks and the drums clearly with nothing fighting each other in the mix. Work with that until you're satisfied and then bring the solo in. Make sure you can still hear all the parts with the solo over the top of the tracks.
It sounds kind of smeary now, a little hard to tell what's going on.
Has potential to sound huge, though, sounds cool.
I'd like a BE100!