Good job! The only problem I have is that a planet is probably 1000s of miles across, and the rings 10s to 100s of thousand of miles. See the problem? They'd fade to just a shimmering, sun illuminated/planet-reflection lighted haze in the distance, and not anymore individual asteroids. They're not exactly a ring of breadcrumbs on a plate. It's a visually difficult problem, graduating from close and relatively identifyable rocks in the foreground to the distant dustmotes and finally individually indistinctable ring of haze.