Alien Twilight River

A fantastical scene of a bright white river meandering through a dark, alien landscape. The terrain is depicted with bizarre rock formations in shades of black and dark purple, creating a stark contrast with the river. The sky above is filled with swirling, vivid greens and blues, transitioning to darker tones, suggesting an alien twilight. Small white stars are sprinkled across the sky, enhancing the extraterrestrial ambience. The artwork is detailed and textured, resembling fantasy art with its dramatic contrasts and otherworldly atmosphere.