Picture a mysterious, dark cavern with a subterranean river flowing through it. The walls of the cavern are rough and textured, depicted with dark lines in shades of gray and black. The river is smooth and flowing, depicted with lighter lines in shades of blue and green. The background is a deep, inky black, with occasional highlights of light reflecting off the walls and the water. The overall effect is eerie and otherworldly, with the sense of a hidden, underground world. in comic style | Anything