Alien Horizon with Ringed Planet

Create a cinematic ultra-wide alien planet landscape with no spaceships and no city, focused on an impossible horizon of discovery. The canvas is a 16:9 panoramic sci-fi concept art scene in rich deep-space colors. In the foreground, show jagged black crystalline mountain ridges and sharp spires on both sides, with glowing blue and violet mineral reflections; include a winding luminous river or energy stream starting near the bottom center and leading the eye through the valley toward a brilliant sunrise-like glow on the distant horizon. Across the sky, place one enormous spiral galaxy dominating the upper left and center, tilted diagonally, with a bright warm white-orange core and swirling pink, violet, blue, and gold nebula arms. On the upper right, show exactly 4 spherical celestial bodies: 1 large ringed gas giant with subtle purple-brown bands and a thin Saturn-like ring system, plus 3 smaller moons nearby, one above-left of the giant, one left-lower of that moon, and one overlapping near the lower-left edge of the giant. Fill the background with dense stars, blue star clusters, magenta nebula clouds, and cosmic dust. The horizon should glow with peach, lavender, and electric blue atmospheric light, silhouetting distant needle-like mountain peaks. Style: highly detailed digital matte painting, epic space fantasy, dramatic scale, luminous volumetric clouds, sharp rocky textures, vibrant astrophotography-inspired lighting, awe and wonder, no text, no watermark. Optional naming mood: a mysterious planet called {argument name="planet name" default="Horizon's Edge"}, with {argument name="dominant sky color" default="violet and electric blue"} tones and a {argument name="horizon glow color" default="peach-gold"} glow.