Bassistin-Auftritt beim Schulfest

A dynamic anime concert illustration of [Mio Akiyama-inspired high school bassist] performing live onstage during a school festival. - Subject: A teenage girl with a cool, serious, focused expression and very long, straight [black] hair whipping sideways in motion. She wears a dark navy Japanese school uniform with a fitted blazer, white collared shirt, blue ribbon bow, and pleated gray-blue skirt. - Instrument: She plays a sunburst electric [left-handed bass guitar] with a tortoiseshell pickguard, with the neck extending to the left and hands correctly positioned for left-handed play. - Composition & Camera: Dramatic low angle in a full-body near-portrait composition. - Setting & Background: Indoor school auditorium packed with students on the ground floor and balcony, ceiling trusses, floating music-note decorations, and glowing confetti particles. A large banner behind reads "[SAKURAKOU K-ON]". In the left foreground is a black Ampeg amplifier stack labeled "[桜高軽音部 K-ON! SAKURAKOU K-ON! BU]", and on the right background is a drum kit with "YAMAHA" branding. - Lighting & Style: Dramatic purple and white stage spotlights, glossy instrument reflections, crisp line art, polished modern anime illustration, SFW.