I’d start with a wall of responsive paint, each fiber humming to the pulse of the crowd. The sensors would read breath, heart rate, even the tilt of a head, and the colors would bleed into one another like wet ink, forming shapes that shift with the collective mood. I’d layer a gentle hum of music that syncs with the visuals, making the space feel alive, like a living character that listens and responds. The audience would feel like they’re part of the artwork, their emotions becoming brushstrokes on a canvas that never stops evolving.