Crystal cave with glowing teal crystals

A narrow vertical cavern dominated by faceted teal crystals that emit an inner glow and shape the dark space into a dramatic shaft of light and shadow. The scene reads as a 9:16 portrait crop with tight vertical framing, tall negative space above and below, and the eye guided upward along crystal clusters toward a faint opening. Surfaces show rough basalt walls, glossy crystal faces, and a shallow reflective pool that catches shards of teal and pale cyan color. Foreground crystals resolve crisply with moderate depth so midground stalagmites and distant cavern mouth retain softer detail. Light sculpts forms with a cool, gentle luminescence that separates planes and casts subtle violet rim glows on edges. Small suspended mist and drifting mineral dust add slow motion and atmosphere while a single carved stone marker suggests quiet human passage. The composition favors a slightly low viewpoint to accentuate height and verticality and keeps clean, dark margins to emphasize the luminous teal palette for mood and focus. Rendered as a high-detail digital illustration with painterly textures and controlled, cinematic contrast to serve concept art, game art, or editorial use.