A cinematic wide shot of the entrance to the land of Echo, a vast world of reflective tunnels and mirrored walls stretching deep into the distance. No physical characters are visible; only living sound-presences appear as glowing light-wave forms, ripples, rings, and vibrating trails in the air. The architecture is smooth, metallic, and glass-like, constantly bouncing sound into repeating luminous patterns. Use a palette of blue, violet, silver, and soft white light. The atmosphere should feel mysterious, majestic, and slightly surreal, with the strong idea that this world is understood by hearing, not by seeing. See more