grotesque fantasy dragon, (massive orange scales with deep cracks and luminescent veins), curled atop a towering mound of ancient gold coins, each coin intricately engraved with forgotten runes, the dragon's wings spread like tattered sails, casting jagged shadows across the cavern floor, (eyes burning with molten intensity, pupils slit like fractured obsidian), surrounded by scattered artifacts rusted crowns, gem-encrusted daggers, and crumbling scrolls, the cavern walls glisten with bioluminescent fungi in sickly greens and purples, stalactites dripping iridescent venom, perspective from below to exaggerate the dragon's dominance, dim light sources from glowing fungi and faint cracks in the ceiling, casting an eerie, flickering ambiance, color palette dominated by burnt oranges, tarnished golds, and murky teals, texture emphasis on the dragon's leathery hide and the corroded metal of the treasure