1girl, breasts, brown_eyes, brown_hair, choker, christmas, full_body, girls_und_panzer, gloves, hat, holding, holding_sack, isobe_noriko, looking_at_viewer, matsui_yasutsugu, one-hour_drawing_challenge, red_footwear, sack, santa_costume, santa_hat, shorts, signature, simple_background, small_breasts, smile, solo, starry_background