Animate this original artwork as a refined five-second website hero media asset. Clouds slowly drift through the valleys below the exact snow-covered mountain peaks; sunlight gently glows on ridgelines and fine snow blows subtly from the summits. Mountains remain rigid. 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.