Not sure with the whole percentage thing means, but since you posted them I'll make a few comments.
-If you move Kenya Nagata's name under Koji Kondo's, it won't jut all the way out to the title.
-Only able to see the PDF right now, what's up with the text "treble clef" and "bass clef?" Those need to not be there.
-The 8vb you have written in the LH is impossible to play on the piano, since those low Eb, D's (etc.) are the lowest on the instrument already.
-Use a bass clef for the RH in the first system.
-The LH in the second system has way too wide intervals to be reachable on the piano. You could probably play the highest notes with the RH, so try putting them in later two of the RH.
-"Preserve pitch unless otherwise noted?" What does that even mean lol.
There's probably a lot more to say, but that should give you something to do for now.