First, you’ll need to set up a trigger. Create a schedule helper that starts well before dark and ends at the time it is light. Example 4pm to 10am.
Once your trigger is set up, use the ambient settings to adjust your lights to 10%.
In night lights, use your motion sensor as the state condition and set the lights to 100%. Make sure in Night Light Control you select If lights are ON, adjust the lights when crossing over.
Or you can look at my 
Smart Light - Entity - Sun Elevation - Ambient & Time Triggers blueprint with the same set up but you just need to use the ambient as the trigger.
Having a delay OFF for your motion sensor will make it work better.
Blacky 