masterpiece, best quality, score_7, 1girl, solo, koki_chan,black t-shirt, jeans, headphones around neck, cowboy shot, holding electric guitar, playing guitar, open mouth, music studio, amplifier, warm lighting

worst quality, low quality, normal quality, lowres, bad anatomy, bad hands, text, error, missing fingers, extra digit, fewer digits, cropped, jpeg artifacts, signature, watermark, username, blurry, artist name, trademark, title,backlighting, washed out, faded colors