The piano had this weird scrapiness going on, which gave it some interesting character, but when the vocal sample went on top of it, sometimes the scrape would cover the vocal sample (which was whispering at times).
The "ooh ooh" and eheheheh (rapidly) sounded real good though.
I guess an EQ pass might've reduced the scrapy factor and made the piano fit a little better. I'd say, either go with chilling out the piano and keeping the drums you got, or leaving it scrapy and hard, and throw in some harder drums.
0.54 was a nice moment -- the drums dropped out and this nice saxophone came in, and the notes sounded pretty good.
Given the title and vocal sample (very Jobim esque) I was expecting some more bossa nova kinda stuff to get thrown in, but that piano stayed strong. Interesting track nonetheless.