I was a big fan of the World Machine album back in the day. This might seem odd on this forum, but for me it was not "all about the bass" as they were a fantastic band with great material, and, as @chris_b has pointed out, it was never really about Mark King's voice.
I think your video is great; way stronger than you suggest in your original post. It really now is all about selling it, so yes, a good agent is possibly the next step.