zatsune miku: https://www.deviantart.com/brsa/art/MMD-Zatsune-Miku-DL-296209507
knife: https://www.deviantart.com/jasper-seahorseking/art/Bloody-Knife-DL-713017352
blood: https://www.deviantart.com/magicalpouchofmagic/art/MMD-Blood-DL-709647002