1- She can wear a cross and she can go to church, but if you going to church is seen as supporting their beliefs then you should not go. Respect her faith, don’t insult it, but feel free to have discussions with her about the problematic aspects of modern Christianity like the trinity.
2- Fatima (a)
3- They wore what we call an Abaya or cloak. It covers the body from head to toe.
4- The Christian drawings are inaccurate and honestly disrespectful to Lady Mary (a). One should not have such drawings at home (those that show her neck).!