It's already a very busy and complex track with a lot of elements, but at the same time what you're afraid about is what's not working for me in this track TBH. The kick and beat feels weak compare to the other elements and the general energy of the track. I picture this as something more story telling, so I'm missing punch and a more strong beat and rhythm in this track.
Have you watch this BTW : Epic Nu School Breaks with Protoculture
As for levels, yes, it's really low at the moment, even when you crank up the volume knob. Maybe you could just set a limiter on your master channel before uploading the track when it's not yet mastered.
But all in all, there's a theme, it can be engaging and story telling IMO, but I would revisit the overall beat and rhythm structure before thinking of adding anything else to this track at the moment.
Hope this helps