Icon placement needs to be unique for each wallpaper on iOS.
Icon customization has improved over the last few iterations of iOS. You can customize each of the following attributes:
Icon size
Truly placing icons anywhere on your Home Screen
Icon color (default, dark, clear, tinted)
When you switch wallpapers, your icon size and color can be different for each, but your icon placement always stays the same. It would be nice to have custom icon placement for each wallpaper so you can actually see the people or objects in the background.
I can see my daughter clearly, but I can’t see my future ride since icon placement for each wallpaper is not customizable, yet.