I like Black Orpheus also
This is very nice, but i have a qualm:
(for those that don't know) Black Orpheus is a real jazz piece.
I like the piano entrance, but the song in its entirety follows the exact same structure as the original (for the most part) , I believe that you should change more than just the lead instrument to make this your own. Until then, this song doesn't belong to you.
Still nice, and I still enjoy listening to it.
(just the fact that you like the original enough to plagiarize earns this a 8/10, the extra point for your effort)