1girl, brown_eyes, brown_hair, christmas, full_body, girls_und_panzer, gloves, hat, holding, holding_sack, leotard, looking_at_viewer, matsui_yasutsugu, nishizumi_maho, one-hour_drawing_challenge, red_footwear, ribbon, sack, santa_costume, santa_hat, signature, simple_background, smile, solo, starry_background