low poly skysphere help

Hi. I want to make a low poly skysphere so that it matches my game better but i also have a day and night cycle where the sun moves. is there a way that I can make a texture for the horizon and clouds but keep the default sun?

I hope you understand what im trying to say. basically can I replace the sky and cloud textures with something else but keep the moving sun?

let me know what to do please. thanks :slight_smile: