Use this recipe to find new pictures your tagged in and set them as your background on your android device
If
You are tagged in a photo
This Trigger fires every time you are tagged you in a new photo. NOTE: Facebook privacy settings may block IFTTT’s access to some photos you are tagged in.
Then
Update device wallpaper
This Action will update the wallpaper on your Android device from the image URL you specify.
Discover more time saving integrations for Facebook and Android Device