An interesting background. Makes me wonder if she became more attuned with nature then with people.
We already have 1 White Mage, it certainly doesn’t mean we can’t have another one.
A Red Mage is a healer as well as on offensive caster, mostly they support.
A Caller is like having multiple characters. Called monsters are not different ones each time you summon them. For example if one dies you wouldn’t be able to summon him or her again. Your character would probably be emotional affected as well. Each monster is like a companion of the Caller.