Animate this original artwork as a refined five-second website hero media asset. The existing concert lasers sweep slowly through light haze, colourful stage lighting pulses gently and audience silhouettes sway with restrained raised-hand motion. Preserve venue, stage and composition. No flashes, strobing or new performers. Preserve original identities, proportions, palette and materials. Locked camera unless explicitly specified. No zoom, cuts, text, UI, new objects or distorted anatomy. Continuous restrained motion; begin and end near the same composition where physically plausible.