1girl absurdres animal_ears axe barcode barcode_tattoo center_opening collar crop_top dark-skinned_female dark_skin digitigrade dual_wielding english_text fake_animal_ears fingerless_gloves flat_chest full_body gloves glowing glowing_eyes head-mounted_display helmet highres holding holding_axe holding_weapon knife kukri mecha_musume mechanical_ears mechanical_legs mechanical_tail missile navel original reference_sheet science_fiction short_hair tail tattoo thrusters weapon white_background zen_(jirakun)