Hey, cool and different behavior here, quite bold actually I found!
I should say that I’m not very keen on what you did because it looks more like a remix than only a mix and I’m not sure it fits what the contest actually is… but why not.
Regarding the production, it sounds odd to me as well: it seems you added layers of tracks on top of the original song without creating spaces for them. And finally, it doesn’t glue that well
Mixing wise, I found the balance having lot of weirdos (vocal quiet at the beginning, some drum parts way too loud or disconnected, some parts are too wet and some too dry) and therefore the story is hard to follow during the song.
By the way, it could fit the artist wishes and I hope you got the result you’re looking to.
Bold job indeed!!