Here are some wall scrolls. They are free to use.
They make good desktop backgrounds. Rotate if needed.
For sizing to be a cell phone wallpaper, if these do not automatically fit to your screen try going to below link and resizing the photo to your screen size. Popular cell phone screen size follows a 9:16 ratio making the width 1080 and the height 1920 will make it perfectly fit the majority of current phones. Notice the lock icon on the given site inbetween width and height, unlock it to enter your custom width and height.
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