1girl ahoge artist_name bangs braid frilled_sleeves frills green_eyes hand_on_own_face highres idolmaster idolmaster_million_live! jewelry light_brown_hair long_sleeves looking_at_viewer necklace parted_lips sakuramori_kaori short_hair signature simple_background sketch smile solo standing tied_hair treble_clef twin_braids upper_body white_background yae_(mono110)