Best Cavern Showcase: Corrosive Caverns by Spoonbender

Here’s their story:

The river churns with toxic green light, bubbling and hissing as it eats away at the rock of the underdoom. Its glow reflects off the cavern walls, painting everything in eerie shades of emerald. Bridges and cliffs cling to the edges of this corrosive flow, offering treacherous footing for anyone foolish enough to cross.