adventure (singular) in music arrangement

sometime last year i decided to try my hand at making a piano arrangement for a song... i have classical training but i've never been any good at composition so i thought i would test my abilities. i did <color - fuji syusuke & hirakoba rin>, which is my favourite tennis song, since i anticipated i would be listening to it a lot and i didn't want to get sick of it lol.

here is the arrangement:

Watch on YouTube

and here is the sheet music, sorry for writing on the world's flimsiest ugliest manuscript paper and also for the beaming mistakes i undoubtedly made:

( process diary under cut )