Solo was good i thought.

The intro was a lot like "I Stand Alone" by Godsmack but you did mention it was Godsmack influenced.

I liked the "Octave" part but i didn't like the end of it, just the last bar. Maybe have some descending octaves just to signal the section is coming to an end and then i think the break will fit better, the jump was weird for me.

Everything else i thought was good.
in my opinion the intro is a bit too similar to "i stand alone". perhaps try to change it in a more personal way.
I thought it was pretty good. Like someone else said, the octave part is cool.
My personal opinion is that the chorus is pretty boring. But, of course, I haven't heard it with vocals. It just seems to me like it could use some lead over the top.