What is the ruling on being named Iliana and Mariana?

The ruling on the permissibility of naming with two unknown names depends on knowing their meaning and connotation, or the intent behind naming with them. Foreign names should not be used if their meaning is unknown, as they may have a meaning that contradicts creed or morals. However, if their meaning is known and there is nothing in them that contradicts Islamic guidelines, then there is no harm in naming with them.