Luminous cyan leaf veins in a twilight forest

A detailed vertical macro shot of a broad leaf where the intricate network of veins glows with a soft, luminous cyan light. The bioluminescent veins stand out against the deep, dark green and midnight blue tones of the leaf's surface, which appears damp with dew. The lighting creates an ethereal, magical atmosphere, reminiscent of a scene from a fantasy forest. The focus is sharp on the central vein structure, with the serrated edges of the leaf softly blending into the dark, shadowy background.