As I listen:

Liked the percussion intro.

The first section gets pretty repetitive around the fifty second mark; it needs to be shorter, or have the lead vary more.

That was a cool break around 1:30. I really like the spacey guitar after it too.

You have a lot of cool parts, but it repeats too much to work as an instrumental; it's just not interesting enough on it's own. The shred section at the end's pretty cool.

C4C? Links are in my sig.