1girl bare_shoulders black_thighhighs blood breasts commentary_request earrings garter_straps glowing glowing_eyes halloween hand_on_headwear hat jewelry kuroi_nyan long_hair medium_breasts midriff moon navel necklace official_art pentagram photoshop_(medium) pointy_ears purple_hair red_eyes senjou_no_electro_girl skull solo staff thighhighs witch witch_hat