The next version of Android is named as Android Orio. The latest Android OS comes with elegant looking stock wallpaper collection.
Android 8.0 Orio stock wallpaper collection contains 5 wallpapers. The wallpapers come in mixed resolutions. Find the one that fits your device resolution.
You will feel Android Orio feel with this wallpaper collection.
Download the stock wallpaper collection from the above link and extract the file in order to get the files. You can use this collection as the home screen and lock screen wallpapers.
Here are some live previews of the Android Orio stock wallpaper collection: