Tbh. I dont have much to say simply sayed its a masterpiece that has to be watched, even if u ask me the anime itself isnt that great, the Film is Peak af.
The development of the characters in the Film aswell as the Soundtracks etc. Was perfect and i believe many people who once watched it can agree with my opinion.
The characters reacted properly in the dedicated situation and there where a good backstory.
About the artstyle i would like to say that i loved it but i assume that this is my Personal opinio and as i sayed previously the anime didnt had any flaws at all