I need your advice: My Submission isn't at the quality standard

I think your track is maybe a little to much to the artistic side. I think it has a cool slightly dark trippy vibe, which might be to special and not very generic for AJ use. I would simply read this article 7 tips to help you succeed on AudioJungle and focus on more simpler commerical tracks. A little dash of originality is good, but try your tracks under different videos you think it will work under and see how it feels. A clear description what you think the tracks is going to suit is also important I would say. Good luck!