Good starting point
Lead and rhythm guitar are just overpowering everything else in this mix.
The synthstrings (while these are technically background) and even the percussion I feel are being swallowed by how powerful you've made your lead (which, by itself is a bit...abrasive in my opinion).
The entire thing feels like it's a two instrument show, and I think there's so much more you can do with what you have.
As far as arrangement goes, this sticks really close to the original source and really doesn't have any flair that makes me think this is 'your' cover of the piece. More personal touches and additions are always helpful for well covered tracks from known games.
But personal taste rules above all. I'm willing to bet that there are plenty of users who like your lead choice and enjoy a more 'straight up cover'.
Good luck with your future projects.