An Analysis on 'Utsukushiki Hito Aruiwa Sorewa'

this is for last 2-3 minutes of the song, since i'm going into my senior years of high school next year and having music as one of my main subjects, i'd like to try and work on my musical analysis' as i've already fallen quite behind on how much i actually really need to know within music theory (especially as i go to a performing arts school for music) and what better way to get better than to analyse a piece of art that i've been analysing in my head?