3girls, blush, canvas_(object), crop_top, holding, holding_brush, idolmaster, idolmaster_shiny_colors, izumi_mei, kukai, looking_at_object, mayuzumi_fuyuko, multiple_girls, paint_splatter, painting_(action), palette_(object), serizawa_asahi, shirt, simple_background, smile, straylight_(idolmaster), tied_shirt, white_background, white_shirt