2girls, ahoge, alina_gray, alina_gray_(swimsuit_costume), bare_shoulders, bikini, blush, bracelet, closed_eyes, earrings, eyewear_on_head, finger_to_mouth, greyscale, heart, holding_another's_arm, jewelry, long_hair, looking_at_viewer, magia_record:_mahou_shoujo_madoka_magica_gaiden, mahou_shoujo_madoka_magica, monochrome, multiple_girls, navel, official_alternate_costume, open_mouth, sena_mikoto, simple_background, smile, standing, sunglasses, swimsuit, thigh_strap, white_background, youichi82880400