1girl, akiyama_yukari, bra, breasts, brown_eyes, brown_hair, choker, christmas, full_body, girls_und_panzer, gloves, hat, holding, holding_sack, large_breasts, looking_at_viewer, matsui_yasutsugu, one-hour_drawing_challenge, red_bra, red_footwear, ribbon_choker, sack, santa_costume, santa_hat, shorts, signature, simple_background, smile, solo, starry_background, underwear