1girl, bikini, black_bikini, blush, breasts, brown_hair, cleavage, collarbone, halterneck, hand_on_own_hip, higuchi_madoka, idolmaster, idolmaster_shiny_colors, katagirinanoka, looking_at_viewer, medium_breasts, mole, mole_under_eye, navel, red_eyes, smile, solo, swimsuit, thigh_gap