First download Nova Launcher prime from the Play Store. Make it look exactly like the Pixel launcher. I've already made a video on how to make Nova look exactly like Pixel. Now, download Pixel Icon Pack from the Play Store. It's a paid application but you can get it for free by downloading it from the below link. Now apply the icon pack to nova launcher. Next, download the stock wallpaper available on Pixel devices by clicking on the link down below. For more information, watch the above video.