One of the cool new features on MIUI 7 is the ability to set a daily lock screen. In short, the wallpaper on your lock screen will change every day automatically.
Xiaomi ads 10 new images every week to keep the selection fresh. They say the images are award winning, copyright protected images we’ve licensed especially for this new feature.
To enable daily lock screen:
Go to Setting -> Wallpaper ->Daily Lock screen -> Choose your favorite -> Apply
Below is a selection of the wallpapers that have been released so far.