Nice job! I love how the double jump works, and the mechanic of "riding" on enemies could be expanded upon if you wanted to develop this further. The assets were also well chosen, and I respect a lot you fully credited them here. My only criticism is that - at least unless I missed something - the "win" screen seems to be just the standard game over screen. Even something very simple, like changing the text of the label to "you win" would have added a lot there. I played through it twice, I think on the second finished run I got all the fruit.
Very good work and use of the assets, and I'm glad it was a great learning experience, too.