Eloise needs a low-key, timelessly classic mn.
Eloise CatherineEloise MargaretEloise JuliaEloise VivienEloise JanetEloise ValerieEloise RuthEloise Rosemary (a bit z-heavy but I think it works OK)
Not sure where
Annabelle comes in - is she your sister's first daughter? Or an alternative to
Eloise, or a possible mn?