Compositing:Compositing is the number one key to making this New sky shader look great. You will have to render the sky(including all three the spheres wich is used to replicate clouds) apart from the rest of your scene to allow you to composit your sky, save it and then render your scene with atransparent background to overlay it with your Anime Sky texture. And then you will have the Anime look you desire. The rest of the tutorial will exclusively be available in my youtube video so Mkae sure to subscrib to my channel to stay updated.

Empai Animations youtube channel