Create 2 separate hour hands.
One is just in the normal mode visible. The other is just in the AOD mode visible.
Your are able to create max. 6 styles for each of this objects. The image files can be different between AOD and normal!
The only thing what you need to keep in mind is that the user can NOT switch independently the styles. That means when he using “Hand Style 05” for the normal view he will using automatically also “Hand Style 05” in AOD Mode.
You can make an Background Image which is “only” visible in the Normal mode and set it up with different styles.
For AOD you could create also an Background Image which is only visible there and set it up with different Styles.
So the User can switch between different background styles in the AOD and in the normal mode (independently).
BUT there is a huge disadvantage in customization for AOD currently. In the preview screen (customization screen) on your watch you only will see the Normal Mode layers and never the AOD layers. So the user will not see how the AOD will look like. He have to set it up press ok and than he have to check it.
Maybe they will improve this somewhere in the future but currently this is what you are able to do when you wanna handle AOD customization.