The same image does not always work equally well on a lock screen and a home screen. The lock screen needs room for a clock and notifications, while the home screen needs enough visual calm for app icons to remain readable.
Lock screens can handle stronger focal points
Portraits, characters, cars and detailed subjects often work well on lock screens because there are fewer persistent icons. Place the main subject away from the clock area whenever possible, especially near the upper center of the image.
Home screens benefit from quieter backgrounds
App icons already create visual noise. A highly detailed wallpaper can make labels and widgets difficult to read. Dark gradients, soft landscapes, blurred backgrounds and compositions with empty space are often easier to use every day.
Use contrast intentionally
If your icons are bright, a darker background can improve separation. If you use dark icons or widgets, a light or softly colored background can work better. Try to avoid areas where icon colors blend directly into the wallpaper.
Matching pairs can look more polished
A useful approach is to choose two wallpapers from the same visual theme: a more detailed version for the lock screen and a simpler version for the home screen. The phone feels consistent without sacrificing readability.