Obelisk in an Oceanic Underground Cave - Digital Art

An ancient stone obelisk rises from the sandy floor of a vast underwater cave. The cave walls are sculpted with stalactites and stalagmites, encrusted with coral and shells. Bioluminescent creatures such as blue jellyfish and swarms of glowing plankton illuminate the scene, casting emerald and sapphire light. The obelisk is covered in faded glyphs and weathered runes, faintly glowing with an inner light. Clear water allows shafts of sunlight to thread down from above, creating dancing caustics on the stone. The artwork has a crisp digital painting style with luminous gradients, sharp edges, and a slightly surreal dreamlike atmosphere. The composition centers on the obelisk as a relic in a quiet, awe inspiring underwater cavern.