Kotobuki tsumugi (K-ON!),blonde hair,blue eyes,long hair,winter sakuragaoka high school uniform,1girl,look at viewer,smile,open mouth,Playing the keyboard,KORG RK100S,keyboard instrument,cowboy shot,school musicroom,(masterpiece,best quality,newest),highres,absurdres,safe,ultra detailed,detailed background,high resolution,8k,16k,perfect eyes.anime screencap

(worst quality,low quality,bad quality),normal quality,lowres,signature,logo,username,bad hands,mutated hands,ambiguous form,muscular,bad anatomy,low resolution,jpeg artifacts,error,bad-artist,bad face,bad eyes,school patch