Martina is a very international name, so why would it sound Spanish?
It is used here in Sweden too. I think it sounds classy.
You could use the full name and tell others to do so, but once she's in school her friends might call her
Tina. Unless she protests herself.
"But it’s all right now.
I learned my lesson well.
You see you can’t please everyone
So you got to please yourself."
Rick Nelson, GardenParty
"It does not become me to make myself smaller than I am." (
Edith Södergran 1891-1923)