Its good
But next time I would recommend using your own melody yes you did change it up. But you still used one of the fl studio scores... Don't worry tho when I started making music I did the same thing but trust me make your own melodies in the end its more rewarding.
But you did do good with variation but not sure if the piano was right for the lead and plus I also wouldn't use the FL keys because to be honest ( They suck really bad). if you new maybe start with using Sytrus ( It is over used but its good to get started with )
Anyways good work on I will keep an eye on some of you new songs coming in.
Have A Great Day!
XenoxX