1girl, arm_up, blush, clothes_writing, collarbone, cosplay, greyscale, hair_between_eyes, hozuki_momiji, low_ponytail, monochrome, onii-chan_wa_oshimai!, oyama_mahiro, oyama_mahiro_(cosplay), parted_lips, ponytail, seramikku, shirt, short_hair, short_ponytail, short_sleeves, simple_background, solo, standing, wavy_mouth, white_background, wide_sleeves