ai generated of a colossal submarine submerged in the depths of the ocean

submarine coral ocean depths colossal vibrant sea bed aqua abyss seafloor underwater blue life lifeform vast exploration scuba deep marine submerge waves stillness seascape seabed twilight aquatic coralreef serenity tranquility sunrays seafauna rich abyssal teeming silent abyssalzone benthic ai generative illustration digital art