I love it. I knew a
Rayna & a
Reyna in college & both were great people to be around. There's also the spelling Reigna, if you care for it. Conversely, you could suggest
Regina (possible nns
Reggie,
Gina) if you prefer it to
Rayna, as they mean the same thing.
To be born Welsh is not to be born with a silver spoon in your mouth, but with a song in your heart.