Here is my latest theme which I simply call “Simple HD”. The theme is very beautiful. It has a clean lockscreen with a semi transparent digital clock. The icons are in HD quality and look well even on 720p resolution. If you are a MIUI or a Non-MIUI User, still you can use this theme with MI Launcher free from Play Store, and transfer this theme to the SD Card to enjoy the Richness on your device.
Copy the theme in mtz format to SD Card> MIUI> Theme folder and apply it from theme manager.