r.s.r., original, wacom, bad id, bad pixiv id, 1girl, acoustic guitar, amplifier, barefoot, blue hair, book, calendar (object), chair, closed eyes, computer, computer keyboard, drawing tablet, electric guitar, female focus, from above, glass, guitar, instrument, lamp, messy room, monitor, navel, office chair, shelf, short hair, shorts, simple background, sitting, solo, speaker, stylus, swivel chair, white background