Quoting Christina Mirkovic-Natare:" Should I care what other people think? Or just name MY child what I want."
As long as you and DH like it then it doesn't really matter what anyone else thinks. They are both REAL names, spelt correctly, so as long as this name is for a girl then there is nothing wrong with your choice - if someone doesn't like it then that is just thier opinion.
BTW I love the name Carmen
It is one of the first Operas I ever saw! She is an interesting Charactor - very wild and wily
BTW if it is a boy then the masculine version would be Carmelo Oliver.