Triumphantly, artwork creation, long shot, (Hypothetical alien civilization discovery:1.8), extraordinary, underwater environment, crystal cavern systems, bioluminescent aquatic flora & fauna, ethereally beautiful architecture, serene marine life forms, human-like extraterrestrial beings, benevolent communication, breaching unknown territories, deep sea exploration, waterproof pencils, transparent watercolours, dreamlike visual journey, 8K, mesmerizing clarity by: Arthur Wardle, Svetlin Velinov
(Hypothetical alien civilization  discovery:1.8) located beneath the ocean waves. 